1997 Pontiac Grand Prix Repair Question
Topics covered: Compression, Spark, Trouble code.
Mileage: 174,000 miles.
Mileage: 174,000 miles.
Asked on February 7, 2013
Pontiac Grand Prix Compression Problem
Car misfires when idle, could be the problem
Answer
Replied on February 7, 2013
Check for applicable trouble codes. To check codes yourself, you need an obd2 code reader. Some of the national brand autostores will check codes for free. The code might tell you which cylinder has a problem? Then you check fuel--spark--compression on that cylinder.
How long since a tune-up?