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2003 Cadillac CTS repairs by problem area

Engine (51%)

Transmission and Drivetrain (7%)

Brakes and Traction Control (13%)

Suspension and Steering (8%)

Electrical and Air Conditioning (14%)

Paint, Rust, Leaks, Rattles, and Trim (3%)

Other (4%)

Chart based on 144 repairs.

2003 Cadillac CTS engine repair cost distribution

$2500+ (8%)

$1000 - $2499 (22%)

$500 - $999 (35%)

$100 - $499 (27%)

< $100 (8%)

Chart based on 37 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten 2003 Cadillac CTS repair histories. Log in or join us to see them all.

2003 Cadillac CTS 4dr Sedan

220-horsepower 3.2L V6 5-speed automatic RWD

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 
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. 
147000 mi

US $1500
valve cover gasket and sending unit leak, power gear leak thermostat stuck open throttle body adjustment 
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. 
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
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. 
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. 
64000 mi Needed new water pump. 
73780 mi

Throttle body replacement 
75640 mi

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

Replacement of cranck sensor. Radiator repair. 
88040 mi

Overheat problem, Mechanic replaced the thermostat, it took one week to get the part, no problem after part replacement. 

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2003 Cadillac CTS 4dr Sedan

178-horsepower 2.6L V6 5-speed automatic RWD

39060 mi

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

Replaced head gasket covers. 
62000 mi

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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2003 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 2003 Cadillac CTS problems occur, check out our car reliability stats.