Spark Knock on C5
Thread Starter
Racer
Joined: Jan 2002
Posts: 436
Likes: 0
From: Spokane WA
Spark Knock on C5
My 02 Coupe with 3300 miles is knocking under slight acceleration when going up hills. I gather the ignition timing is late and I'm getting pre-ignition spark knock. I use 92 octane, the highest available in my area. I'm going to take it to the Chevy dealer next week to have it checked. I'm just wondering if anyone else has experienced this or if I've misdiagnosed what may be wrong?
Many thanks.
Many thanks.
