Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: Fast idle cycling from 1500 rpm's to 2500 rpm's on 2002 Chevrolet Blazer

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Had a intake gasket failure and replaced gaskets from the heads up. Started up and idle was so high I was nervous it would over rev. Also have a knocking sound like a exhaust leak at first and then goes away after about 30 seconds of running with the cycling fast idle. Thanks!
Didn't find what you were looking for?