Number 6 spark plug keeps going bad. I had a tuneup 2012 and since then I've replace #6 four times in the last 3 years.

Asked by Thomas Aug 25, 2015 at 09:40 PM about the 1993 Dodge RAM 150 Club Cab LB RWD

Question type: Maintenance & Repair

Spark plug

1 Answer
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Tom answered 9 years ago

Compression check this with the other cylinders . it should be close to the others.. It sounds like a bad valve or piston ring ..

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