Cylider 3 amp 4 missfiring, spark plugs are.

Tiny
ABUCASH17
  • 2007 CHEVROLET SUBURBAN
  • 160,000 MILES

Cylider # 3 & 4 missfiring, spark plugs are good, coils are good. What else could be?

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Monday, February 4th, 2013 AT 4:17 AM

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Tiny
RASMATAZ
  • MEMBER

Check spark plugs, compression and injector for these cylinders also refer to this walk thru link: http://www.2carpros.com/articles/engine-misfires-or-runs-rough

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Monday, February 4th, 2013 AT 4:32 AM

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