Question about 1992 Cadillac DeVille

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Stalls when acellerator is depressed 4.9 litre engine

Problem has been getting worse over about a month to where it is dangerous. Got E12 and E412 codes so replaced the distributor with little improvement. Acts like a fuel delivery problem or bad TPS but no trouble code to indecate such. Your expert diagnosis and suggestions would be most appreciated.



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Had the same problem on a 1993 sedan deville, replaced $700 in parts finally found engine was not grounded replaced negative battery cable, try jumper cable from negative side of battery to engine.

Posted on Feb 24, 2009


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