1995 Buick Riviera spark plugs fouling out

Tiny
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  • 1995 BUICK RIVIERA
Engine Mechanical problem
1995 Buick Riviera 6 cyl Front Wheel Drive Automatic

I have already had the crank shaft sensor changed and the spark plugs. It will run for a couple of hours and then the spark plugs foul out again. What else can the problem be?
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Wednesday, November 12th, 2008 AT 12:01 AM

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Tiny
BLUELIGHTNIN6
  • MECHANIC
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Worn internal engine components such as piston rings or valve guides will allow oil to get into the combustion chamber at a greater rate than can be burned off by ignition. Are they getting oil soaked?

Are they black with carbon deposits after a few hours?

Also, ensure that the plugs are gapped properly or else they will not burn the fuel.
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Wednesday, November 12th, 2008 AT 12:27 AM

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