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Problems for specific Cadillac DeVille years:

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Newest reported 2003 Cadillac DeVille problems

 

Verified for the Cadillac DeVille

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.

37 Reports
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Verified for the Cadillac DeVille

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

24 Reports
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Verified for the Cadillac DeVille

The EGR valve may stick open, causing a rough idle and/or the Check Engine Light to illuminate.

38 Reports
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Verified for the Cadillac DeVille

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.

109 Reports
Me Too

Verified for the Cadillac DeVille

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

98 Reports
Me Too

Verified for the Cadillac DeVille

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

26 Reports
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Verified for the Cadillac DeVille

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.

24 Reports
Me Too

Verified for the Cadillac DeVille

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

34 Reports
Me Too

Verified for the Cadillac DeVille

One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

273 Reports
Me Too

Verified for the Cadillac DeVille

Acid may leak from the battery at the cable connections, resulting in corrosion on the battery cable ends and in the battery tray. A Leaking battery should be replaced and the cables thoroughly cleaned or replaced if necessary.

8 Reports
Me Too

Verified for the Cadillac DeVille

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.

72 Reports
Me Too

Verified for the Cadillac DeVille

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.

74 Reports
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Verified for the Cadillac DeVille

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.

84 Reports
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Verified for the Cadillac DeVille

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

32 Reports
Me Too

Verified for the Cadillac DeVille

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.

36 Reports
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