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Problems for specific Cadillac DeVille years:

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Most reported 2003 Cadillac DeVille problems

 

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.

31 Reports
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Verified for the Cadillac DeVille

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

24 Reports
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Verified for the Cadillac DeVille

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

23 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.

23 Reports
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Verified for the Cadillac DeVille

The steering wheel position sensor may fail, resulting in the service stability message being displayed.

22 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.

22 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
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