2004 GMC Envoy Missing

2004 GMC ENVOY
65,340 MILES • 6 CYL • 2WD • AUTOMATIC
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ROCKY BELARDO
  • MEMBER
  • 1 POST
The #1 spark plug is wet and fouling
Mar 7, 2010 at 8:49 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
you can try a new plug if you haven't already but take a compression test. This could also be an injector or plug wire/coil assy.
Apr 2, 2010 at 8:28 PM
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