2001 GMC C1500 ENGINE MISFIRING

2001 GMC C1500
98,000 MILES • V8 • 4WD • AUTOMATIC
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WAKING3
  • MEMBER
  • 1 POST
I HAVE MISFIRE ON ENGINE.HAD IT CHECKED TWICE
AND BOTH TIME IT SHOWED FALIURE ON THE #7
CYLINDER.I REPLACED THE COIL,BUT THE PROBLEM
CONTINUES.IT USALLY OCCURS AT APPROX 40 MPH
OR WITH A SLOW ACCLERATION.5.3 L ENGINE

THANKS
Apr 11, 2010 at 2:55 PM
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