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2001 Chevy Cavalier runs rough

Tiny
SDSMITH
  • MEMBER
  • 2001 CHEVROLET CAVALIER
Engine Mechanical problem
2001 Chevy Cavalier 4 cyl Two Wheel Drive Automatic 120K miles

car is missing, check engine light is on TRAC off is now showing, so we changed both coil packs, plugs & wires, still doing the same thing. Any idea what to do now? It's 2.2 litre engine
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Friday, June 12th, 2009 AT 5:45 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Scan the computer for codes this is your starting point

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.
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Friday, June 12th, 2009 AT 5:58 PM

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