High Idle Cadillac Deville 1996

Asked by Guru52TJH Feb 01, 2018 at 11:49 PM about the 1996 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

My Cadillac Deville is accelarating on its own , and
idling around 1200 rpms in drive when placed in
park it jumps to around 3000 rpms

1 Answer
103,435

KenF answered 6 years ago

check the throttle position sensor, and check for vacuum leaks around the throttle body.

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