1997 Chevy Camaro Misfire

1997 CHEVROLET CAMARO

133,000 MILES • 6 CYL • 2WD • AUTOMATIC

RESCUEFE

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I have a misfire in the #3 cylider (per my code reader) at RPM's below 1200. I have changed the coil pack, the module under the coils, the computert, the plugs and wires. Sometimes the misfire goes away, sometimes the engine runs very rough at idle and sometimes not so rough. The compression test was good. What else can I check? Could it be the injector?

Thanks,
Sean

Jan 31, 2008 at 5:24 PM

RASMATAZ

CAR REPAIR CONTRIBUTOR
75,992 POSTS

A misfire in a specific cylinder should lead you to check the spark plug, fuel injector and compression

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel

Jan 31, 2008 at 5:43 PM

MUSTANG87

CAR REPAIR CONTRIBUTOR
261 POSTS

my brothers minivan was doing that to and changed everything u said also, at the end it was the injector.

Feb 1, 2008 at 11:01 AM

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