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Problems for specific Cadillac DeVille years:

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Newest reported 2002 Cadillac DeVille problems

 

Reported by puttytat and 7 others for the Cadillac DeVille

Just started last week. This warning has always lit up if I make a sudden stop, but then goes away. Last week it did not go away and now stays on all the time, even though the coolant level is fine.

8 Reports
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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.

111 Reports
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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
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Verified for the Cadillac DeVille

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

27 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
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Verified for the Cadillac DeVille

The alternator may fail causing the battery to go dead, or an abnormal noise may develop. The dash warning light may or may not illuminate. A failed alternator will require replacement.

9 Reports
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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.

275 Reports
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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
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Verified for the Cadillac DeVille

One or both transmission output shaft seals may leak. Our technicians tell us that worn bushings inside the transmission could be the cause of the damaged seals. Our technicians tell us that if a bushing is worn, excess play will be noted where the drive axle attaches to the transmission.

17 Reports
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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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