Spark plugs

Tiny
LAURA JACKSON
  • MAZDA PROTEGE

MY SPARK PLUGS KEEPING GOING BAD. I REPLACE THEM AND THEY HAVE OIL OR ARE BLACK. WHAT CAUSES THIS?
1994 MAZDA PROTEGE 1.8L DOHC 110,000MILES

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Monday, April 9th, 2007 AT 2:25 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER

What kind of tune up parts did you replaced? Oil on the sparkplug can be a ring/valve seal/valve problem etc.

Did you check the ignition timing?

When it refuses to start check for spark and comeback.

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Wednesday, April 11th, 2007 AT 7:51 AM

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