Cobalt2006
Junior Member
Hi Everyone
My 2006 Cobalt with a 2.2L engine (141,666 miles) is throwing diagnostic code P0304. I understand the code is related to a cylinder 4 misfire that could be caused by a bad ignition coil, spark plug or fuel injector, etc.
The car has AC Delco iridium plugs with about 40,000 miles on them and cylinder 4 plug looks clean.
Can anyone let me know if the ignition coils are known to be faulty for this year Cobalts? And, if there is a way to test the ignition coils?
Thanks
My 2006 Cobalt with a 2.2L engine (141,666 miles) is throwing diagnostic code P0304. I understand the code is related to a cylinder 4 misfire that could be caused by a bad ignition coil, spark plug or fuel injector, etc.
The car has AC Delco iridium plugs with about 40,000 miles on them and cylinder 4 plug looks clean.
Can anyone let me know if the ignition coils are known to be faulty for this year Cobalts? And, if there is a way to test the ignition coils?
Thanks
