2005 Cadillac CTS Cadillac CTS 2005

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2005 Cadillac CTS repairs by problem area

Engine (29%)

Transmission and Drivetrain (18%)

Brakes and Traction Control (4%)

Suspension and Steering (16%)

Electrical and Air Conditioning (15%)

Paint, Rust, Leaks, Rattles, and Trim (10%)

Other (9%)

Chart based on 223 repairs.
See TSBs and recalls for the 2005 Cadillac CTS.

2005 Cadillac CTS engine repair cost distribution

$2500+ (8%)

$1000 - $2499 (13%)

$500 - $999 (4%)

$100 - $499 (29%)

< $100 (46%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 52 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2005 Cadillac CTS

Engine not specified

93200 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. 
95000 mi Bad file injector 6 

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2005 Cadillac CTS 4dr Sedan

400-horsepower 5.7L V8 6-speed manual RWD

99000 mi

US $160
Engine mounts replaced, one completely failed, the other partially 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. 
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. 
91500 mi

US $200
Replaced motor/trans mounts and oil pressure sensor. 
124000 mi

US $75
Slight misfire. Changed plugs and wires 
54300 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. 
52080 mi

C $400
Broken spring valve 
52080 mi

C $3000
Oil pump failed. 
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. 
48000 mi

US $221
Engine oil pressure sender needed replacement. 
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! 
47477 mi Motor mount failed Replaced Power Steering Pump 

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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. 
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. 
49000 mi excess oil consumption 
48000 mi excessive oil consumption. Was burning one qt every 800miles. I traded the car. 

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2005 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 5-speed automatic RWD

136000 mi The engine burned oil. I was adding about 1 quart every two weeks. (Approx 500 miles per week of driving). 
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. 
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 
105000 mi

US $1400
Muffler Assembly worn out. 
54000 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. 
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. 
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 don’t 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. 
66840 mi

$1725
the coil of cylinder 1 & 5 went bad and the car start to shake at stop 
72120 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. 
110000 mi

US $786
Coil number 3 failed and mis-fired replaced all plugs and coil 3. 
146280 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. 
111000 mi

US $6000
No warning Engine locked up ..timing chains failed scattered metal debris throughout oil ruined bearings 
46000 mi Had oil leak at front engine seal. 
69000 mi

US $324
Rerplaced one fuel injector due to missing 
74300 mi

US $306
Replaced another fuel injector 
77000 mi

US $218
Coil melted and had to be replaced. 
78100 mi

US $240
Had to replace injector 
83000 mi

US $309
Replace fuel injector 
85300 mi

US $228
Replaced coil 

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2005 Cadillac CTS 4dr Sedan

52000 mi

US $900
Check coolant notification kept popping up even after an oil change with inspection. Thermal sensor housing replaced. 

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2005 Cadillac CTS Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2005 Cadillac CTS problems occur, check out our car reliability stats.