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1990 Cadillac DeVille 4.5L Poor Idle Quality, Misfire
Posted to GM Driveability on 3/20/2000

customer complained that the car had blown up several mufflers. the problem is worse after it is at operating temps. when putting into gear it runs terrible (cuts out and backfires) also noted when out of gear it idles fine unless accesories are turned on,...

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Message Closed w/FIX

car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5332L
Engine4.5 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / sefi
Emissionsobd1
SymptomsPoor Idle Quality, Misfire
OccursUnder Load
Message Closed w/FIX

car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5332L
Engine4.5 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / sefi
Emissionsobd1
SymptomsPoor Idle Quality, Misfire
OccursUnder Load