2003 Pontiac Grand Am misfire on cylinder 2

Tiny
DUFFMAN1972
  • MEMBER
  • 2003 PONTIAC GRAND AM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 11,900 MILES
I have a 2003 Grand Am w/ a 3.4. It is misfiring on #2. I replaced the coils, plugs, wires, injector & control module. What else could it be?
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Saturday, September 12th, 2009 AT 8:42 AM

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Tiny
MMPRINCE4000
  • EXPERT
Check the compression on that cylinder, could be a collapsed lifter, bent/broke pushrod.
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Sunday, September 20th, 2009 AT 9:04 AM

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