1998 Pontiac Grand Am Repair Question
Topics covered: Compression, Vacuum leak, Wiring.
Mileage: 168,000 miles.
Mileage: 168,000 miles.
Asked on March 17, 2012
I have a gt 3.1 v-6 that is showing a po301 reading that says a misfire in cylinder # 1.i have replaced wires,plugs,coils,ignition control module and even the fuel pressure regulator.i had a pressure checked done on the cylinders and
After it runs for awhile you can hear the misfire.But when I push down on the pedal it sounds even.
Answer
Replied on March 17, 2012
Your question was cut off.
Check wiring to the #1 plug. Check compression. Make sure the plug is properly seated. Check for vacuum leaks.