1994 GMC Sierra fouled plug

1994 GMC SIERRA
175,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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JOHN HILLIARD YORK PA
  • MEMBER
  • 3 POSTS
number 5 cylinder plug fouls out uses oil is oil fouled
Sep 26, 2015 at 6:49 AM
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CAR-MAN145
  • ✓Experienced Mechanic
  • 321 POSTS
They used to sell a thing called plug saver that gets the plug farther out of the cylinder so it would not foul so fast. To correct the problem you problem need to look at a reman motor.
Sep 26, 2015 at 7:48 AM
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