1994 Chevy Prizm plugs keep fouling out

1994 CHEVROLET PRIZM
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CCRIDER45
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Engine Mechanical problem
1994 Chevy Prizm 4 cyl Two Wheel Drive Automatic

looking to buy a 1994 prizm,man bought car from some one that needed money. he took it to his mechanic ,he did tune-upbut the plugs keep fouling out 3rd set of plugs. what could be causing the plugs to keep fouling.
Feb 3, 2009 at 7:45 PM
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MMPRINCE4000
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https://www.2carpros.com/how_to/how_to_change_my_spark_plugs.htm

Look at examples of plugs and let us know which picture is closest to what your plugs look like.

Generally, rich fuel mixture, oil fouled caused by valve guides/seals, insuffecient spark energy, improper plug grounding, wrong heat range.
Feb 4, 2009 at 6:01 AM