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1992 Cadillac DeVille 4.9L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Misfire,
Posted to GM Driveability on 9/4/2002 7 Replies

this car, especially when cold,when you snap the throttle will flounder completely, sounding more like run on, inluding pinging, and will not pickup rpm until throttle is released.

After a complete tune up and replacing map and tps it is not as bad but still ...

7 Replies Received (View Replies)

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car Vehicle Data

1992 Cadillac DeVille

VIN 1G6CD53B3N
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / DFI
EmissionsOBD1
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Misfire,
OccursCold, Under Load, on Accel, Intermittently
Misc.Fwd 4 Door Sedan
Message Closed w/FIX

car Vehicle Data

1992 Cadillac DeVille

VIN 1G6CD53B3N
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / DFI
EmissionsOBD1
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Misfire,
OccursCold, Under Load, on Accel, Intermittently
Misc.Fwd 4 Door Sedan