2003 GMC Sierra missing

2003 GMC SIERRA
78,000 MILES • V8 • 2WD • AUTOMATIC
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OM
  • MEMBER
  • 1 POST
First starts run fine after a min. or two starts missing reads multipe misses. new plugs & fuel filter no help
Jan 17, 2008 at 5:49 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
Change your spark plug wires, and clean out your egr valve. also check the air filter.
Jan 18, 2008 at 1:21 AM
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