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Cadillac CTS Engine Problems

829 TrueDelta members own (or used to own) a 2000 or newer Cadillac CTS. 154 of these members (18.6%) have reported engine repairs for their car. A total of 298 engine repairs to Cadillac CTSs--an average of 0.4 per vehicle--have been reported.

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

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Chart based on 1094 repairs.

Cadillac CTS engine repair cost distribution

Chart based on 110 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 Cadillac CTS repair histories. Log in or join us to see them all.

2008 Cadillac CTS 4dr Sedan

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

8000 mi   The camshaft needed to be replaced as their was some movement in that area. 

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2008 Cadillac CTS 4dr Sedan

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

1000 mi   Exhaust vibration. Repaired exhaust hanger/mounting as per factory bulletin. 

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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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2005 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 5-speed automatic RWD

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   Finally the engine cover bedding I was waiting for since Sep07 has been installed. 
34100 $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   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   Engine mount replaced. transmission mount replaced. 
66940   the coil of cylinder 1 & 5 went bad and the car start to shake at stop 
72320   Engine light blinking & car start jerking on stop. Replaced coil #2,4,6. ECM model, and fuel injector #6 
80600   engine make making making noise and turns off on first cold start, few second later it's normal. i noticed i'm losing coolant water more than normal with no sign of leakage. they replaced radiator outlet o ring. 

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2004 Cadillac CTS 4dr Sedan

255-horsepower 3.6L V6 5-speed automatic RWD

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   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   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 
61000 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 .. 

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2003 Cadillac CTS 4dr Sedan

220-horsepower 3.2L V6 5-speed automatic RWD

46500 mi C $495 thermostat broken. Seal and thermostat on backorder, had to take vehicle back at a later date. 
46500   Thermostat broken. Seal and thermostat on backorder, had to take vehicle back at a later date. Month: December 2007 outcome, ordered parts. 
33356   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 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. 
73780 $80 Throttle body replacement 
75640   small engine cooler inside the engine leaked radator water, need to be replaced part cost US$ 180 labour charge US$ 70. 
84940   Replacement of cranck sensor. Radiator repair. 
88040   Overheat problem, Mechanic replaced the thermostat, it took one week to get the part, no problem after part replacement. 

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