Problems for specific Cadillac DeVille DTS years:

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Newest reported 2004 Cadillac DeVille DTS problems

 

Verified for the Cadillac DeVille DTS

An ignition coil may fail causing one of the cylinders to misfire. Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.

15 Reports
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Verified for the Cadillac DeVille DTS

The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.

15 Reports
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Verified for the Cadillac DeVille DTS

Failure of the catalytic converter can result in illumination of the Check Engine Light.

11 Reports
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Water may be drawn into the secondary air injection (AIR) pump causing the pump to fail and the Check Engine Light to illuminate. Our technicians tell us there is a kit available from General Motors to relocate the air intake for the pump which should prevent future damage from water intrusion.

9 Reports
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Verified for the Cadillac DeVille DTS

A Loose or worn gas cap may cause Check Engine Light to illuminate.

12 Reports
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The Check Engine Light may illuminate due to an engine vacuum leak from the intake manifold area.

11 Reports
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The water pump and/or the plastic side tanks on the radiator may leak causing a loss of coolant. The engine may overheat due to coolant loss. Continued coolant loss after external leaks have been repaired could indicate a blown head gasket.

15 Reports
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Verified for the Cadillac DeVille DTS

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

27 Reports
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The trunk pull down switch may fail causing the trunk lid not to close completely. Our technicians tell us that the failed switch can be replaced without changing the complete pull down motor assembly.

5 Reports
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Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket. Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.

7 Reports
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The torque converter clutch (TTC) may stop working due to an internal transmission failure. The Check Engine Light will illuminate if this occurs. Our technicians tell us the transmission will require dis-assembly to correct this concern.

13 Reports
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The engine may develop an oil leak from the lower crankcase portion of the engine block. Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.

42 Reports
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Verified for the Cadillac DeVille DTS

The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.

13 Reports
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Verified for the Cadillac DeVille DTS

An automatic transmission fluid leak may develop from the rubber section of a transmission cooler line. In some cases the rubber section of hose can be replaced. In others, the complete cooler line must be replaced to correct this type of leak.

8 Reports
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Verified for the Cadillac DeVille DTS

The parking brake may not release automatically due to a failed vacuum switch or actuator. Our technicians tell us that if vacuum is supplied to the actuator when the transmission is in gear, the vacuum switch is functioning and replacing the actuator should correct this concern.

5 Reports
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