1994 Chevy Prizm plugs keep fouling out

Tiny
CCRIDER45
  • MEMBER
  • 1994 CHEVROLET PRIZM
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.
Tuesday, February 3rd, 2009 AT 7:45 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
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.
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Wednesday, February 4th, 2009 AT 6:01 AM

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