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Problems for specific Cadillac DeVille years:

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Most reported 1996 Cadillac DeVille problems

 

Verified for the Cadillac DeVille

The air conditioning compressor may become noisy or develop a refrigeration leak, requiring replacement.

20 Reports
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Verified for the Cadillac DeVille

The high-pressure power steering lines are known to leak.

17 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

An intake manifold vacuum leak can develop from a variety of sources, often causing illumination of the Check Engine Light with codes P0171 & P0174 stored. Thorough diagnoses will be necessary to pinpoint the cause in order to make the correct repairs. A "smoke" machine is often used to isolate the cause of difficult to find vacuum leaks.

11 Reports
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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

Illumination of the Check Engine Light may be the result of a loose or worn gas cap.

2 Reports
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