Cadillac CTS Cadillac CTS

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Cadillac CTS repairs by problem area

Engine (28%)

Transmission and Drivetrain (10%)

Brakes and Traction Control (7%)

Suspension and Steering (10%)

Electrical and Air Conditioning (21%)

Paint, Rust, Leaks, Rattles, and Trim (15%)

Other (8%)

Chart based on 1306 repairs.

Cadillac CTS engine repair cost distribution

$2500+ (8%)

$1000 - $2499 (16%)

$500 - $999 (29%)

$100 - $499 (34%)

< $100 (13%)

Chart based on 137 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2014 Cadillac CTS 4dr Sedan

turbocharged 420hp 3.6L V6 8-speed shiftable automatic RWD

3000 mi Exhaust rattle. Dealer worked on it and rattle went away for an hour, then came back. Took car to a different dealer. Showed them the exhaust rattle. They ordered a new muffler. It hasn't come in yet. 
5500 mi New muffler was installed, and it fixed the exhaust rattle. 

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2014 Cadillac CTS 4dr Sedan

turbocharged 272hp 2.0L I4 6-speed shiftable automatic RWD

Engine noise, suspected connecting rod bearing. The dealer contacted the manufacturer, who directed that the engine be replaced. 

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2012 Cadillac CTS 4dr Wagon

318-horsepower 3.6L V6 6-speed shiftable automatic AWD

12300 mi CEL as a result of a misfire 
27000 mi CEL light illuminated--dealer could not find any reason for the code, cleared it, and inspected/cleaned the modules that were involved. 

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2011 Cadillac CTS 4dr Wagon

supercharged 556hp 6.2L V8 6-speed manual RWD

54000 mi Supercharger started whining. Required replacement of the supercharger and all related pieces. 

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2011 Cadillac CTS 4dr Sedan

supercharged 556hp 6.2L V8 6-speed manual RWD

27000 mi Replaced supercharger 
32700 mi

US $800
Throttle Body sensor failure 

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2011 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed shiftable automatic RWD

37300 mi

US $800
water pump broke. just let it cool down and was about 12 miles from dealer so we drove it with air-condoner on full and temp stayed about 200. 

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2011 Cadillac CTS 4dr Sedan

270-horsepower 3.0L V6 6-speed shiftable automatic RWD

34720 mi

C $200
Rough idle at a stop. Check engine and stabilitrac lights on for a few seconds. Engine smoothed out. Cause:7081 poor coil output loading up sparkplug. #5 coil and sparkplug replaced. 
30000 mi Runs rough when air conditioner is on and idling. Will be going back, not fixed. 
54600 mi

US $202
car stopped after cranking up and engine light stayed on. Would not immediately crank up. After 60 seconds car started. car was taken directly to dealer. ECM changed (under warranty) and injectors cleaned. 

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2011 Cadillac CTS 2dr Coupe

304-horsepower 3.6L V6 6-speed manual RWD

6500 mi One intake valve spring broke. I drove gently eight miles to the dealer on three cylinders. The computer had shut down the left half of the engine. Valve, valve spring, piston, cam positioner, etc. were replaced. 

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2010 Cadillac CTS 4dr Wagon

304-horsepower 3.6L V6 6-speed shiftable automatic RWD

79000 mi

US $750
1st trip, reset CEL. 2nd trip (for same symptoms) replaced 1 coil pack & 1 spark plug. 3rd trip (for same symptoms) replaced throttle body. 
86000 mi

US $400
6 of 6 plugs, 1 of 6 coil packs replaced (CEL came on) 

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2010 Cadillac CTS 4dr Wagon

270-horsepower 3.0L V6 6-speed shiftable automatic RWD

72000 mi Bad fuel tank sender and fuel pump. 

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2010 Cadillac CTS 4dr Wagon

270-horsepower 3.0L V6 6-speed shiftable automatic AWD

90000 mi

US $813
The oil gauge stopped working and was getting alerts of low oil pressure, dealer diagnosed as a faulty or broken oil pressure sensor.  

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2010 Cadillac CTS 4dr Sedan

supercharged 556hp 6.2L V8 6-speed shiftable automatic RWD

40700 mi Supercharger made rattling sounds. Replaced under warranty. 
95000 mi Bad file injector 6 

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2010 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed shiftable automatic AWD

94000 mi

US $85
Coolant level dropped, put car in limp mode. They told me it is my responsibility to watch this level and would not cover under warranty. Since January it has lost almost 3 quarts and they say there are no leaks and they cannot find any isse 

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2010 Cadillac CTS 4dr Sedan

270-horsepower 3.0L V6 6-speed shiftable automatic RWD

27000 mi Check engine light came on. Problem was the catalytic converter core came apart and pieces lodged in the muffler causing backpressure and poor engine performance. 
42000 mi CTS stalls at 60-70 mph on highway as the computer system shuts down and dash goes out, and you cannot restart without stopping and putting in Park. GM refuses to fix the problem as they cannot duplicate, but they dont duplicate 2 hours of . 
44700 mi Computer problems. Cadillac changed the ignition switch and replaced 1 or 2 computers. Car is now performing like new. 
18700 mi Rear main seal was leaking 

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2010 Cadillac CTS 4dr Sedan

270-horsepower 3.0L V6 6-speed shiftable automatic AWD

17000 mi Coolant temp sensor went bad 

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2009 Cadillac CTS 4dr Sedan

supercharged 556hp 6.2L V8 6-speed shiftable automatic RWD

7000 mi Check engine light remained on steady for over a week. 
79000 mi Small coolant leak 

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2009 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed shiftable automatic RWD

61000 mi

US $50
Water pump was leaking coolant, replaced water pump. 
64700 mi

US $50
Cylinders 1 and 3 were misfiring. Also 2 spark plugs needed to be replaced. 
69000 mi

US $70
Major oil leak 
29320 mi Engine Warning light came on during long trip (3000km). Performance was not effected. Problem was a sensor for the throttle system was stuck in the "open" position- it is supposed to re-set after three starts but did'nt. Sensor re-set. 
12000 mi Could not turn key past ACC setting or totally turn off and lock ignition..XM failed at same time. They opened the steering wheel housing and found loose wire. Repairing this fixed the keyless ignition. 

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2009 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed shiftable automatic AWD

18300 mi SES light went on after FE went down, engine loped slightly at idle, and there was a hesitation after gear change in light throttle. Engine threw code P000D. Bank 2 exhaust cam actuator issue, Actuator replaced. 
7791 mi Catalytic Converter Replacement Complete Exhaust System Replacement. 
21123 mi Oxygen sensor replacement, Windshield washer pump replacement Catalytic Converter Replaced, Oxidation 
42500 mi Rear exhaust converters, exhaust seals, catalytic converter drivers side, front and rear drivers O2 banks, skid plate, drivers side muffler, 1 spark plug 
31000 mi Cylinder 4 misfire. Dealer replaced coil pack and spark plug on cylinder 4. Warranty work. 
40000 mi Oxygen Sensor malfunction. Replaced. 
48000 mi Engine misfire. Replace coilpack 
61700 mi

US $100
Coil pack failure 
31515 mi Reprogram ECM; Electrical/Wiring repair 
44000 mi

US $195
Cleaned intake manifold 
49000 mi Engine coil #6 replaced - error code P0306 
57000 mi Lost power & hesitation. Throttle body assembly replaced (re-lubed twice in the last 2 years). 
61000 mi Replaced fuse box assembly for P2601 - no power from auxiliary water pump to fuse block assembly Replaced plugs 2 & 5 for shorting and carbon fouled Replaced temperature sensor & cooling fan resistor for P2601 
63700 mi

US $400
Replaced coils 4 & 5 - all spark plugs replaced 
64700 mi

US $9
Reattach engine mount 

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2009 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed manual RWD

4000 mi Check engine light went on. Told it was ignition misfiring. Told ignition coil was bad, so they replaced it. Manual drive clutch had a bad sensor whereby the system couldn't tell if the clutch was engaged. 
9000 mi auxiliary coolant fan was not working 
9000 mi shop replaced auxiliary coolant fan. 

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2009 Cadillac CTS 4dr Sedan

263-horsepower 3.6L V6 6-speed shiftable automatic RWD

23960 mi Clicking sound, top of engine. Major repair under warranty new camshaft, lower block internal parts/sensors replaced approx $3500.00 repair. Still have to resolve excessive oil consumption, a liter every 800 km. 

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2009 Cadillac CTS 4dr Sedan

263-horsepower 3.6L V6 6-speed shiftable automatic AWD

13000 mi The ignition lock would not turn off with the key in it. The lock was jammed. Took it to the local Buick dealership late in the day, they agreed to take it even though they don't sell Cadillacs. They replaced the lock and returned car the next day. 
23000 mi Car was hesitating and felt like a slipping clutch - turned out to be low engine oil affecting oil pressure on timing belt tensioner. Oil life remaining was 39%, but engine oil was severely low - no warning light or other indication. 

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2009 Cadillac CTS 4dr Sedan

263-horsepower 3.6L V6 6-speed manual RWD

36000 mi

US $68
Recall for ignition cylinder binding-was replaced, oil changed tire rotation,1/28/2011 

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2008 Cadillac CTS

Engine not specified

40800 mi

US $45
I had constantly complained to the dealer about the carbon buildup and black exhaust with rapid acceleration. They did nothing. Finally asked if air filter ever replaces. ANS: NO Replaced air filter, no further problems and better mileage. 

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2008 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed shiftable automatic RWD

8000 mi Engine stopped while driving. Dealer claims that due to Gas Tank Design, car can stall when going uphill with 3 gallons of gas in the tank. Car would not restart until it had been shaken (not stirred) for 15 miles on the back of a flatbed. 
6000 mi 1. Check engine light on.  
30300 mi OnStar & GM Remote Diagnostic results indicated a failing coolant pump that should be checked at the dealer within 7 days. Part was replaced under warranty. 
86000 mi

US $135
Vacuum hose & broken elbow were replaced. RE: How badly? - Engine misfire noticeable when cold & on hard acceleration as well as check engine light on. RE: How discovered? - Driver noticed the engine misfire and THEN noticed the warning. 
92000 mi

US $895
Engine misfire/running rough. They did a "top engine clean." Engine misfire/running rough. This time they pulled the heads & manually cleaned out heavy carbon build-up. 
23000 mi

US $123
check engine light on after oil change, fuel mixture sensor stuck,needed to disassemble and reassemble 
24000 mi coolant temp sensor failure 
37500 mi water pump,  transmission sensor; also oil change and all air filters 
80000 mi

US $130
failed smog check 
82700 mi

US $2500
fuel and emissions sensor replacement 
88000 mi Corrosion was developing around the oil fill cap, suspected that a head gasket was going because water in oil. 
9000 mi Rattling exhaust system. Mounting needed adjustment. 
43000 mi Replaced all timing chains and chain tensioners. 
47000 mi ECU reflash 
26300 mi

US $133
Excessive end play on left end camshaft. Installed 2 seals, a gasket kit and 2 washers. 
29000 mi

US $1500
Engine light came on so I took it to dealer who said they had to drop the engine to check out the problem. Whatever it was, the problem was fixed. However, 95% of my bill was labor. 
26000 mi Noisy exhaust resonance/vibration heard in passenger cabin when at idle with foot on brake. After multiple unsuccessful attempts, dealer finally replaced entire dual exhaust system from engine exhaust manifolds to chrome exhaust pipe tips. 
40500 mi

US $200
Excessive oil consumption (1qt. in 1650mi. confirmed by oil consumption test). Rebuilt engine (heavy carbon buildup; new piston rings, bearings, seals, gaskets, etc.) Check engine light and codes. Replaced timing chain tensioners. 
44700 mi Previous engine rebuild failed to correct excessive oil consumption (1qt per 1200mi after rebuild). Disassembled engine again and detected out-of-round cylinder bores. Replaced rebuilt engine with crated new LLT engine. 
7000 mi Car used two quarts of oil in 5,000 miles. Presently performing an oil usage test supervised by the dealer. 
35000 mi High pressure fuel pump failed. Car went into reduced engine power mode. Pressure was 55 psi rather than 3000. Part replaced on day 2. 
49000 mi Car went into limp home mode briefly and service engine soon light illuminated. Took to the dealer the next day and they replaced the TAC module under the powertrain warranty. 
101400 mi

US $210
Spark plugs and coils 
21000 mi

US $101
Auxiliary pump faulty, warning from onstar under engine cooling section, replaced, fixed 
94000 mi timing belt failed 
48000 mi Timing chain adjustment 

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2008 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed shiftable automatic AWD

54000 mi

US $80
Check engine light, repair code DTC P0011 intake camshaft position (CMP)came up. Dealer said problem occurs with dirty or low oil. Neither were the case, but I had dealer change oil anyways. Problem not fixed, check engine light still on Replaced cam chain 
48300 mi

US $2300
Brought in to dealer. They claimed it was low on oil which caused issue. Came back 3 days later with same issue. Brought it back to the dealer for same CEL code. They realized after it burnt a quart of oil in 4 days the timing chain had stretched. Replaced timing chain and some other misc. gaskets. 
58500 mi

US $150
#6 cyclinder went coil went bad. 7th trip to dealer in less then 2 years of buying it. #6 cyclinder went coil went bad. Finally convince us to get rid of car. 7th trip to dealer in less then 2 years of buying it. Cadillac is a POS. 
38000 mi Car had several errors. Check engine light never worked. Car engine hesitated (noticed while on highway). Dealer replaced tensioners(?) which fixed problem. Dealer said problem was a result of not changing oil enough.  
35000 mi

US $450
While driving, the "check Engine" light came on and stayed on. I called OnStar and they confirmed there was a problem. I took the car to the dealer and they determined that one coil had failed. They replaced the Coil and Spark Plug. 
44000 mi After starting my engine I noticed that the "Check Engine" light had come on. I called Onstar. they diagnosed Cam sensor. I called dealer and they told me not to drive. They sent tow truck to bring car to dealership. 
44000 mi While returning home I noticed a miss in the engine and the check light came on.I contacted Onstar.It was a bad sparkplug. It was towed to dealer.The plug and coil was replaced. Because of the promised savings I had them all relaced. 
2000 mi The is a rumble coming from the rear end of the car starting at 45MPH. GM sent engineers out to do some driving with me and agreed that there is a problem and that it was not normal. They attempted to repair the car immediately by swapping parts from anot 
31000 mi Timing belt needs replacement. 
8000 mi The camshaft needed to be replaced as their was some movement in that area. 
12995 mi Oxygen sensor replaced. 
26000 mi The Service Engine Light came on. I took it into the dealer, they found it was a timing belt that had stretched. Dealer replaced belt. Successful Repair. 
15000 mi Accelerator sensor failed. 
19000 mi Timing chains defective from supplier. Replaced stretched defective timing chains. 
64000 mi

US $666
Water pump 
71627 mi

US $3298
replace water pump; replace air filter; rep cabin air filter; front brakes and rotors replaced; cleaned injection sys; brake sys flush; power steering service 
72000 mi

US $760
check engine light on: dealer diagnosed one spark plug and coil replacement. Also diagnosed and replaced water pump belt and AC belt, both worn. 
77000 mi

US $200
Engine not firing on all cylinders; changed plugs 
99000 mi

US $350
Fuel tank pressure sensor replaced. 

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2008 Cadillac CTS 4dr Sedan

304-horsepower 3.6L V6 6-speed manual RWD

3000 mi Car turned off, and ignition would not turn to restart. 
28000 mi continued vibration on 2008 CTS-304 HP direct injection-Rset the TCM-Back in shop did a MOD ON THE Exhaust Sys-did not fix the problem-it is now in the shop again for same problem-VIBRATION-I hope this time it is fixed. Dealer replaced the exhaust system. Still minor vibration. 
14000 mi Chaffed wires in engine harness at engine cover stud bracket. Harness was repaired using extra insulation around entire engine harness. 

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2008 Cadillac CTS 4dr Sedan

263-horsepower 3.6L V6 6-speed shiftable automatic RWD

13000 mi

US $250
There is a defective thrust bearing in the engine causing a rattle that I could hear. They are replacing the thrust bearing, heads, and timing chains. 
46000 mi Replaced broken gas cap 
95000 mi Replaced timing chain and component parts 
1000 mi Exhaust vibration. Repaired exhaust hanger/mounting as per factory bulletin. 
6000 mi Exhaust rattle when in drive with brakes applied. Exhaust rattle while in drive with brakes applied. 

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2008 Cadillac CTS 4dr Sedan

263-horsepower 3.6L V6 6-speed shiftable automatic AWD

48000 mi Warranty replacement of timing chain and chain guides 
11000 mi engine stumbling at start up 
38000 mi Knock/Ping, Items replaced: The Timing Chain, Cam Shaft Actuators, Lifters, O2 Sensors, Top Engine Cleaning done, Oil O ring Replacement, Retarded Timing, Field Engineer Visit, and problem still is not fixed, GM wash their hands of it. 
41700 mi

US $7100
Camshaft bearings, cylinder scouring, Engine was replaced 
48000 mi

US $55
New motor with 5K miles & Engine again is making a knocking noise when under load also excessive vibration at idle, tech duplicated noise suggested premium fuel, conclusion it still knocks. Returned techs do not recognize any knocking now?? 

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2008 Cadillac CTS 4dr Sedan

263-horsepower 3.6L V6 6-speed manual RWD

28520 mi reprogram transmission 

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2008 Cadillac CTS 4dr Sedan

210-horsepower 2.8L V6 6-speed shiftable automatic RWD

4340 mi Mounting of exhaust too close to underbody. Required the brackets to be lowered 1/4". 

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2008 Cadillac CTS 4-door

6-cylinder automatic 2WD

59000 mi Check engine light came on. Had to replace Timing Chains. Actually, this entire ordeal took two months. Long story. Bottom line, The repair was done with no cost to me. 

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2007 Cadillac CTS 4dr Sedan

400-horsepower 6.0L V8 6-speed manual RWD

62300 mi

US $550
Water pump failed 
21000 mi

US $1100
engine wiring harness damaged by catalytic converter heat. Required replacement of 8 wires, removal of catalyst and exhaust manifold. fluid filled motor mounts failed, common problem with these. replaced with creative steel polyurethane units. 

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2007 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 6-speed manual RWD

60760 mi

C $650
Check engine light came on, Timing needed to be replaced. Timing had ext.warranty for 10yrs or 250KM. Additonal parts of $650 had to be replaced but was not under warranty. Phasers, timing chain bearings needed replacement. 
150000 mi

US $600
Could not pass smog 

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2007 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 5-speed shiftable automatic RWD

69000 mi

US $173
Check engine light: Loose air induction hose needed to be reclamped Check engine light / mass airflow sensor 
122000 mi

US $1500
bad catalytic converters bad ignition coils 
94000 mi

US $978
Ignition coil replacement 
91000 mi

US $24
Had to replace fuel cap it was not creating a vacuum seal on fuel system. 

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2007 Cadillac CTS 4dr Sedan

210-horsepower 2.8L V6 5-speed shiftable automatic RWD

52000 mi

US $600
Replaced water pump 
120000 mi would not start, would not stop cranking until battery died. they replaced streched timing chain. 

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2006 Cadillac CTS

Engine not specified

64000 mi

US $2300
The intake manifold gasket had to be replaced along with a coil pack and the spark plugs. Car does not run the same now.  

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2006 Cadillac CTS 4dr Sedan

400-horsepower 6.0L V8 6-speed manual RWD

110000 mi

US $50
Thermostat stuck open and had to be replaced. 

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2006 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 6-speed manual RWD

85000 mi

US $614
Replaced the water pump. 

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2006 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 5-speed shiftable automatic RWD

46000 mi Fuel Injector 5 failed - stuck in the full open position causing extremely rich fuel air mixture. 
102000 mi ECM module was failing, had a couple of 'no crank no start. No engine lights even though I believe I had a O2 sensor bad.Watched YouTube which described condition. 
180000 mi

US $800
spark plug wires and plugs 
180000 mi engine light 
31 mi clamp of radiator hose was broken. Replaced 
67000 mi

US $220
two coils defective. replaced 6 plugs replaced also. Did not have to be changed, tested good. 
500 mi reflashed ECU to try and fix on-board computer faults. Also affected the radio and ability to get into the custom settings menu for the car. 
14500 mi Replaced Rear main seal for oil leak 
42000 mi Rear main seal had a small leak when turned in. About to replace leaking radiator when turned in. 
30000 mi Transmission cooler burst in Radiator, Warranty coverage. Replaced Radiator, Transmission, hoses, etc 
106000 mi

US $65
Developed an engine miss. Pulled code and found that number three cylinder had misfires. Replaced ignition coil. Problem corrected 
89000 mi

US $85
knocking sound coming from the front of engine between 29 to 30mph 
78300 mi

US $120
Cylinder 4 misfire a couple times per day (every 20 miles) No noticeable effects to acceleration or idle. Replaced all spark plugs (preventative) and only the cylinder 4 ignition coil which solved the problem at almost 77k miles. 
94000 mi

US $400
Car is bucking and feels like its going to kill. There is also a rattling noise under the hood like something is loose 
96000 mi

US $100
Coil pack 
110000 mi

US $80
Coil pack 

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2006 Cadillac CTS 4dr Sedan

210-horsepower 2.8L V6 5-speed shiftable automatic RWD

122000 mi

US $265
Air intake manifold replaced 
151000 mi Timing chain. P0008 
27000 mi Water Pump leaking. Replaced Water hose not tight. They repaired. 
45260 mi Timing chain. 
51460 mi

C $500
Radiator cap and coolant. 
58900 mi LIGHT ENGINE 21, CALLED ONSTAR, CODE P 0604 SEPT 21. APPOINTMENT DEALER FOR 27 SEPT. AT DEALER LIGHT WENT OFF. DEALER DECIDE TO DO NOTHING! 
62000 mi

C $366
Changed spark plug cylinder 5, and swapped ignition coils between 5 and 6. Still knocking. Fixed misfire. Spark plug and ignition coil for cylinder #5. Replaced radiator cap. 
62400 mi

C $460
Oil cooler, radiator, etc. blew up, transmission fluid leaked onto the street. Bill initially $1,500, reduced to $460 after I gave them an earful. Cadillac paid for the parts, I paid labor. 
64140 mi

C $500
Misfire cylider #3. Intake gasket removed. 
19000 mi car wouldn't start -- replaced faulty ECM (covered by warranty) 

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2005 Cadillac CTS

Engine not specified

93300 mi unknown whirring noise, usually when feathering the accelerator and car in 20 mph range, and 40mph range. Dealer could not hear the noise, and therefore did nothing to fix - for the 5th time over 2 year period. 

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2005 Cadillac CTS 4dr Sedan

400-horsepower 5.7L V8 6-speed manual RWD

92000 mi

US $200
Replaced motor/trans mounts and oil pressure sensor. 
54500 mi

US $25
Check engine light came on. Code read large leak in fuel vapor return system. Usually means bad gas cap. Replace cap with genuine GM part. Fixed. 
47477 mi Replaced Power Steering Pump 
95000 mi Intermittent problem with throttle position vs. accelerator pedal position, sending engine into reduced power mode. Multiple components replaced without success. Returned car to me with ticket still open. Awaiting additional parts. 
95000 mi Car became undrivable with constant CEL and reduced power mode. After several parts were replaced without solving the problem, extensive rewiring of the throttle position control system wiring harness resolved the issue. 
97000 mi

US $600
Both engine mounts had leaked fluid. One was in two pieces with only the safety interlock holding them together. GM data indicates that the other failed unit had been replaced once before. Replaced both mounts with aftermarket units. 
145000 mi

US $2200
replaced transmission mount 
147000 mi Replaced throttle body & associated wiring harness. 
48000 mi

US $221
Engine oil pressure sender needed replacement. 
52080 mi

C $400
Broken spring valve 
52080 mi

C $3000
Oil pump failed. 
56000 mi

US $100
Radiator leak and repair. Replaced 1 motor mount. This has been a recurring problem and have now had 5 mounts replaced in 3.5 years. 
26000 mi Replace radiator also known TSB, but was noticed by owner first. 
28000 mi Vehicle has major engine vibration on shutdown. Dealer refused to replace motor mounts because I am not the original owner of the vehicle and therefore they cannot prove how the vehicle was maintained prior to my ownership! 
55000 mi Sunroof not functioning since uninstalled from CPU. Coolant low second time in 2 months. Was topped off orig by dealer, I suggested this time they check for a leak due to frequency of low coolant warning. They found crack in radiator and replaced. 

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2005 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 6-speed manual RWD

70000 mi

US $5200
Timing chain jumped because of faulty timing chain stretch causing severe cylinder head damage. Replaced entire valve train and cat convertor. 
49000 mi excess oil consumption 
51000 mi excessive oil consumption. Was burning one qt every 800miles. I traded the car. 
106000 mi

US $1600
Sensor to regulate fuel & air mixture malfunctioning. Assembly to hold spark plugs in place needed replacing. 
112000 mi

US $1400
Hoses broke causing the engine to overheat. 

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2005 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 5-speed automatic RWD

153940 mi Excessive oil consumption. Oil catch can installed so excessive oil sucked in from the crankcase doesn't foul spark plugs. Added STP to gas to decarbonize rings and combustion chamber. Premature spark plug deterioration. I removed the upper plenum & replaced two coils (#1 & #3) along with all of the spark plugs. 
87000 mi

US $600
Failed ignition coil O2 sensor malfunction 
88300 mi

US $973
fuel injector failure 
69000 mi

US $324
Rerplaced one fuel injector due to missing 
74500 mi

US $306
Replaced another fuel injector 
77000 mi

US $218
Coil melted and had to be replaced. 
78300 mi

US $240
Had to replace injector 
83000 mi

US $309
Replace fuel injector 
85700 mi

US $228
Replaced coil 
39124 mi Low coolant warning. Many tests were run without any conclusions. Coolant was topped off. Also, rear diff whine fixed with rearend rebuild due to needing new bearings. Third fix was trunk struts were replaced due to poor performance. 
46000 mi Oil consumption, they 'soaked' the cylinders with a cleanser to remove carbon from the engine and changed the oil as part of the procedure. 
51000 mi Piston rings, valve seals, and all engine gaskets replaced due to oil consumption issue. Now after 1500 miles there is no oil loss. 
78000 mi Oil pressure sensor short circuit. Sensor replaced. 
127000 mi

US $313
Crankshaft position sensor. Code PO335. 
53700 mi excessive oil consumption. 3rd time in shop as getting worse. Running oil consumption test. 
56000 mi Oil consumption now at 2 quarts in 1500 miles. Dealer giving run around. Says Cadillac are known for oil consumption. What a bunch of BS. Still doing oil consumption test. 
105000 mi

US $1400
Muffler Assembly worn out. 
139000 mi The engine burned oil. I was adding about 1 quart every two weeks. (Approx 500 miles per week of driving). 
46000 mi Had oil leak at front engine seal. 
110000 mi

US $786
Coil number 3 failed and mis-fired replaced all plugs and coil 3. 
2000 mi

US $400
Transmission mount replaced . Mechanic said it would fix problem I was having with the car jerking from the rear end but that was not the problem. 
2000 mi

US $240
Cracked flywheel Engine replaced in May Differential Bushing 
25420 mi Some times, while driving my RPM fluctuates when my foot in off the gas (goes up and down by itself). I didn't see this happening after I got my car back. When cold I can feel my engine shake and it goes away when the engine is warm. They told me that it's normal since my car now considered OLD. 
32860 mi Finally the engine cover bedding I was waiting for since Sep07 has been installed. 
34100 mi

$50
Some times after I come back to my car and open the door I can clearly smell the cooling liquid coming from the inside of my car. It turns out water pump is leaking and was replaced under warranty. 
37200 mi My RPM fluctuate on idle. They acknowledge the problem but they donít know how to fix it. They informed GM-USA since many customers complained about this problem. 
56420 mi

$3000
Engine mount replaced. transmission mount replaced. 
66940 mi

$1725
the coil of cylinder 1 & 5 went bad and the car start to shake at stop 
72320 mi

$1050
Engine light blinking & car start jerking on stop. Replaced coil #2,4,6. ECM model, and fuel injector #6 
80600 mi

$1250
engine make making making noise and turns off on first cold start, few second later it's normal. They found "misfire due a sticky valves, carbon spark plug. Performed top engine and engine carb tune up conditioner" according to the invoice. i noticed i'm losing coolant water more than normal with no sign of leakage. they replaced radiator outlet o ring. 
81000 mi

US $150
Ignition coil on cyl 2 went out at 81k miles. Was going to cost $610 with labor but I got the extended warranty to cover it. 
111000 mi

US $6000
No warning Engine locked up ..timing chains failed scattered metal debris throughout oil ruined bearings 

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2004 Cadillac CTS

Engine not specified

41000 mi

US $806
Replaced radiator. 

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2004 Cadillac CTS 4dr Sedan

400-horsepower 5.7L V8 6-speed manual RWD

45000 mi Replace Engine Mounts 
50000 mi Tighten Rear Cradle Bolts 

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2004 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 5-speed automatic RWD

77568 mi

C $100
Warranty: Excessive oil consumption. 1qt very 2000 miles. Replace Piston Rings, Valve Seals and Gaskets. 
78343 mi

C $100
Warranty: Trans cooler lines unbonded from radiator. Replace radiator, refill radiator and trans. 
80000 mi High oil consumption resulting in a 2000 mile monitoring then taken back for a ring cleaning via the injectors. Am now monitoring second 2000 miles to determine if next steps are required. 
44000 mi A few days later took the car back in at lunch and made appointment for the following day. Same problem but if I shut it off and turned it back on the car would run ok for a while. This trip they replaced the Throttle Assembly. A week later, it was back with same issue, this time they replaced the ECM. 
45000 mi Car had same symptoms as last two visits. Stability control light came on, then check engine soon alarm then the engine power was reduced. I shut it off sat a bit, turned it back on and the Check Engine Soon light still lit but I could drive it to the d 
99700 mi

US $220
Had to replace one of the coil packs in the engine 
68800 mi

US $240
#3 Cylinder Misfired and required replacing ignition coil on that cylinder. 
78000 mi

US $65
Check Engine Light came on. Noticed faulty fuel cap , purchased and replaced. Reset Check Engine Light. Price paid for Dianostic Machine $65 Price for Fuel Cap $20. 
95000 mi

US $600
Had another Cylinder Coil go out (?) Replaced plugs but still have check engine light on because of Throttle Body error. 
88660 mi

C $500
The line that goes from the auto transmission came out of the radiator, car lost coolant and transmission oil. Replaced the radiator, but still have to take it to a transmission shop to check it. 
102000 mi

US $70
code p0128 showed, thermostat was stuck open, real pain to replace. 
180000 mi

US $1037
Emissions and Exhaust System. Code P0420 ("Catalyst System Low Efficiency Bank 1"). Dealer replaced Catalytic Converter. The manager who drove the car thought it was a cylinder misfire.They swapped cylinder coil packs & spark plugs.Could not duplicate issue.Charged me for inspection. 
181000 mi Engine was making a loud whistling sound. This was the result of a bad repair (instead of replacement) of PCV tubing to the engine earlier in July.Dealer fixed no charge because they said the tech should have replaced it instead of taping it up. 
186000 mi

US $247
Replaced six original ignition coils. This seems to have stopped the cylinders from misfiring. 
194700 mi

US $45
There was a slight oil leak that was due to a seal that was going bad. 
97000 mi

US $512
Car was at shop for oil change and tire rotation, Mechanic noticed leak from water pump. Pump replaced. 
207000 mi

US $382
Engine began to misfire and service engine light came on. Diagnostics was ran. failed ignition coil was replaced. 
61000 mi

US $600
Entire intake from the MAF to the intake manifold had to be replaced. Including the electronic throttle control assembly. They origanally thought that the volant intake had caused the issue. Upon further evaluation and inspection, they found it to be a .. 
93000 mi

US $700
Cylinder misfire; replace faulty coil and sparkplugs 
95000 mi

US $1000
Catalytic converter needed to be replaced 
43000 mi

US $40
Car indicated coolant was low 2nd time in 1 week, after being filled form the 1st warning. Shop did a visual inspection, and could not find a leak. They did not have equipment to do a pressure test. They suggested another shop to get test done. Had different shop look at coolant leak. They did pressure test and visual inspection after running car on lift several times. Never found leak, and test came back fine. There was coolant on our garage floor though. Suggested we monitor the problem. 
45000 mi

US $55
Coolant leak again. Also radiator hoses were collapsed like they were sucked in. Shop determined it was a faulty radiator cap. Replaced the cap and problem is resolved. 
45000 mi

US $70
engine would not run. It would start then immediately die. I checked all connections and hoses and found nothing wrong. The dealership found that the air intake was not attached correctly. Unmetered air was entering the engine causing it to die. 
78000 mi Water pump started leaking profusely. Dealer replaced.  Replaced gas cap. 
79000 mi Oil sensor giving false readings. Parts on order.  
82000 mi Sensor previously ordered was installed. 
91000 mi

US $30
Reattached vacuum hose that fell off of air box behind air filter. Replaced gas cap. Evap syst code cleared. 
106000 mi

US $966
There was a hole in an evaporative emission return hose. The section of hose was replaced along with the cannister vent solenoid, cannister purge solenoid, and the battery. 
116000 mi

US $250
Diver side catalytic converter failed. Found by check engine light and code. Replaced catalytic converter and upstream o2 sensor. Purchased after market parts and did work myself saving $600 over dealer cost. Car runs like new now. 
113000 mi

US $1200
1) ECM 2) THROTTLE CONTROL MODULE AND HARNESS 
146000 mi

US $1300
Five of the six spark plugs had fouled and the number five coil pack needed replaceing. 
115000 mi

US $1200
Hose running from transmission to radiator was pulled out. Requires two new hoses and new radiator 
71280 mi

C $12000
throttle body and throttle sensor replaced and intake work transmission reprogramming 
80900 mi

C $200
second time o2 sensor replaced 
81220 mi

C $1200
eight weeks later o2 sensors failed again. ecm replaced with o2 sensors, dealer diagnoses o2 sensors failing due to ecm failure 
84000 mi

US $150
Bracket holding the exhaust failed and was rattling. They fixed the issue. 
149000 mi

US $1500
Ignition coil shorted on one cylinder blowing the fuse. This caused half the cylinders to stop working Coolant pump leak 
161000 mi Had a check engine light for P0420. 
141500 mi

US $29
Missfire in cylinder 6, CEL stated PO306 and PO300, Replaced Coil and spark plug has not come back. 
162000 mi

US $144
Replaced Throttle body 3 times in the past two months. It has a 1 year warranty. Also replaced wiring harness. Heard hard ticking from engine checked and replaced purge valve canister ticking has to returned. 
163000 mi

US $255
Again the throttle body failed. Got a refund from previous company and bought one from AC delco shop. Installed. Checked wires all ok. Replacing gas pedal and sensor. If fails again will replace ECM. Threw code P0221 before it failed. 
68600 mi Engine light on for several weeks. No drivability problems. 

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2004 Cadillac CTS 4dr Sedan

220-horsepower 3.2L V6 5-speed manual RWD

115000 mi Serpentine belt tensioner pulley seized. The pulley sheared off and contacted the plastic timing belt cover. The timing belt sheared and then broke. Interference engine. Car needs engine. 

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2003 Cadillac CTS

Engine not specified

110000 mi

US $5000
lots of electrical problems, cracked heads requiring engine to be rebuilt, currently needs head job again, transmission needs to be repaired, heater not working, back window motors gone!!! car from HELL!!! 
110000 mi The car ran hot about 1 month ago and it's a total loss now. The engine is gone! The car is currently junked. 
66000 mi

US $787
Engine ran hot, took to two different dealerships and was quoted repair costs of $2000 and $5000 respectively. Had car towed to John's auto in Hazel Park Mich. Paid $787.40 to replace radiator and flush system.Problem solved! 

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2003 Cadillac CTS 4dr Sedan

220-horsepower 3.2L V6 5-speed manual RWD

125000 mi Blown head gaskets. 

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2003 Cadillac CTS 4dr Sedan

220-horsepower 3.2L V6 5-speed automatic RWD

25000 mi Exhaust manifold gasket replacement 
27000 mi Thermostat/Exhaust manifold gasket replacement 
48000 mi

US $27500
I basically bought a lemon. The car the first few weeks was awesome, had to replace the tires, windshield first month. Had to replace the brakes and rotors. Car has check engine light on, leaking oil and coolant. Just did the 100k mile warranty 
64000 mi Needed new water pump. 
68200 mi

C $100
car would not start in the morning, brought it into the shop and found that there was spark and fuel so had to be a sensor. Crank sensor failure. 
46500 mi

C $495
thermostat broken. Seal and thermostat on backorder, had to take vehicle back at a later date. 
46500 mi

C $580
Thermostat broken. Seal and thermostat on backorder, had to take vehicle back at a later date. Month: December 2007 outcome, ordered parts. 
33356 mi slightly rough idle, brought rpm's up to about 750-800, seemed to help quite a bit.If it holds at those rpm's and computers don't re-adjust. 
75020 mi

C $520
Long time for heater to throw heat. Figured it was the thermostat. Took to dealer and got P128 fault. Thermostat replaced and intake manifold gaskets replaced b/c had to be removed to make repair. Decided to replace spark plugs also. 
85000 mi sensor 
86000 mi

US $2065
oil leaking from both valve cover gaskets front o2 sensor replaced Rear o2 sensor replaced 
88000 mi o2 sensors front and rear replaced again - under warranty no charge 
89500 mi

US $50
Valve cover gasket leaking 
92000 mi

US $45
Replaced crank angle sensor 
93000 mi

US $789
Remove and replace thermostat 
95300 mi

US $50
replace gas cap 
73780 mi

$80
Throttle body replacement 
75640 mi

$250
small engine cooler inside the engine leaked radator water, need to be replaced part cost US$ 180 labour charge US$ 70. 
84940 mi

$250
Replacement of cranck sensor. Radiator repair. 
88040 mi

$120
Overheat problem, Mechanic replaced the thermostat, it took one week to get the part, no problem after part replacement. 
97000 mi Unexpected stalling. Required new transmission sensor. 
98000 mi Valve cover gasket leaking oil when sold. 
145000 mi

US $1500
L/R Valve Covers Replaced/Regasketed. New coil pack. New thermostat. 
89000 mi

US $500
Thermostat replaced. 
94000 mi

US $305
Oxygen sensor, bank 2 #2 
97000 mi

US $697
Replaced valve cover gasket, and resealed. Leaking oil had previously damaged the oxygen sensor replaced at last visit. O2 sensors cleaned and replaced. Same O2 sensor dropped a code on the way home - O2 sensor re-replacement pending. 
98000 mi

US $500
Oxygen sensors re-replaced. No further codes. 
100000 mi

US $1200
Replaced lower intake gasket and PCV hose for the oil leak that continued after the last repair. Re-replaced gaskets as needed for access. 
118000 mi New water pump 
101000 mi

US $1500
A few days after dealer performed 100,000 service car wouldn't start. Dealer claimed carbon buildup and cleaned heads and valves.  Also replaced several sensors. 
130000 mi

US $875
replace seals on motor head gaskets 
136300 mi

US $528
replace throttle boby 
45000 mi Crankcase sensor went out. 
61295 mi

US $625
Electronic Control Module 
64000 mi

US $5100
Blown water line. Had a major replacement of all rubber under the hood: timing belt, water pump, all hoses, valve cover gaskets. 
172000 mi

US $350
Engine head gasket leak, oil leaks around valve cover. 
71300 mi

C $100
Also small oil leak,rocker cover gasket needed to be replaced and ordered, also warrenty. 
78740 mi

C $60
Crank position sensor, cheap repair,common prob wit 3.2L,car wouldnt start,key stays turned to start by itslef then gives up,several attempts,let sit for 1hr car started and drove it home, next day drove to the shop and had it repaired 
80600 mi

C $250
Thermostat 
59000 mi Pvc valve broken and there was an oil leak 
69300 mi

US $750
Oil cooler part died. The part is being repaired and the engine flushed. 
72000 mi

US $320
replace thermostat 
75500 mi

US $250
gas vapor valve 
84000 mi Bearing for a belt 
86000 mi

US $80
Oil sending unit switch 
147000 mi

US $1500
valve cover gasket and sending unit leak, power gear leak thermostat stuck open throttle body adjustment 
70500 mi

US $1080
Oil leak from valve covers. Replaced gaskets. Coolant leak from water pump area. Replaced water pump. 
80000 mi

US $373
Replaced crank position sensor 
224000 mi EVAP solenoid is damaged Each time I fill in gaz, it won't start easily This is the second time I face this problem and the EVAP had been changed 10 months ago. 

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2003 Cadillac CTS 4dr Sedan

178-horsepower 2.6L V6 5-speed automatic RWD

39060 mi

$1200
Fire under the hood while driving. Oil leak from head gasket detected. Had to replace head gaskets, the cover, burned wires and vacuum hose. Waited 3 weeks for parts to arrive. 
41540 mi

$300
Replaced head gasket covers. 
62000 mi

$320
Generator belt broke in the middle of drive. The promlem was caused by tensioner falling apart. The car had to be towed as one belt is used for steering, AC, generator and water pump. Do not neglet routine maintenance to avoid such a hassle 

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Cadillac CTS Engine Problems

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