1998 Chevrolet Cavalier Cylinder 1 Misfire

1998 CHEVROLET TRUCK
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EROCK9187
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  • 1 POST
1998 Chevy Cavalier 2.2 L 107,000 miles.. starts and runs but when it idles its misfiring on Cylinder 1..Also the engine shakes violently causing the whole car to shake..The car also is very loud..The fuel pump has been changed..The head gasket..new spark plugs..and a new cam sensor..Any opinions on what might be the problem?
Jul 7, 2006 at 2:35 AM
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MIKEYBDMAN
  • ✓Experienced Mechanic
  • 623 POSTS
Have you changed the coil pack for the no.1 cylinder?
Did you test the compression of the no.1 cylinder?
If you have eliminated the ignition, i.e. spark plug, wires and coil, then you might want to pull that valve cover off and see if you have a visible problem with the valves.
Another thought is if you have a fuel injector that sprays in the intake manifold for each cylinder, maybe that one is not firing correctly, or at all.
You may have to take this one and have them put it on an engine analysist machine to check it out.
Good luck!
Jul 7, 2006 at 12:14 PM
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Suggested Repair

Check the cylinder 1 coil pack, spark, and compression. If ignition checks out, inspect the valves under the valve cover and test the cylinder 1 fuel injector, or have the engine analyzed on a diagnostic machine.

Conversation Summary

A 1998 Chevrolet Cavalier 2.2L with 107,000 miles misfires on cylinder 1 at idle, shakes violently, and runs loudly. The fuel pump, head gasket, spark plugs, and cam sensor have already been replaced. The expert recommends checking the cylinder 1 coil pack and compression, then inspecting the valves and fuel injector if ignition parts are ruled out, or having the engine tested on an analyzer.

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