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1990 Cadillac DeVille 4.5L Extended High Idle
Posted to GM Driveability on 11/11/1998

After driving at 40 mph + - then letting up on the throttle the vehicle stays at roughly the same speed, the idle will stay higher than normal right up until the vehicle comes to a stop then the idle will return to normal.

Any suggestions? Thank you all very...

  Related Documents & Media  1990 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5330L
Engine4.5 L / 8 cyl
EmissionsUS
SymptomsExtended High Idle
OccursCruise
Message Closed w/FIX

car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5330L
Engine4.5 L / 8 cyl
EmissionsUS
SymptomsExtended High Idle
OccursCruise