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1990 Cadillac DeVille 4.5L Poor Idle Quality, Cuts out, Misfire
Posted to GM Driveability on 2/15/2000

Car runs good when it isn't acting up like this. When car warms up, it acts like it has plug wires crosed (backfires real bad at idle). we put in a known good test distributor and it still had the same symptoms. Problem is, car doesn't do it EVERY time eng...

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car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5339L
Engine4.5 L / 8 cyl
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursWhen Warm
Message Closed w/FIX

car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5339L
Engine4.5 L / 8 cyl
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursWhen Warm