my 02 Rendezvous idles at 3000 to 4000 rpm in park what would make it do this

Asked by Dan Dec 07, 2019 at 11:26 PM about the 2002 Buick Rendezvous CX FWD

Question type: Maintenance & Repair

3 Answers
103,215

KenF answered 4 years ago

A vacuum leak, or bad intake air sensor. Try cleaning the MAF sensor using a MAF only cleaner, make sure PCV is clean and not leaking air into intake.

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