Quote:
Originally Posted by zbadboy
Once again this is my girl friends truck so I do not know it as well as she does. I don't drive it that often. She said it hasn't pinged in quite sometime. She also checked with the mechanic she knows. She was the receptionist at that shop for 6 years. He told her he did not think it was the plenum gasket because she had black deposit build up on the spark plug and he said it should have been greyish colored build up. I'm sure this will spark some comments.
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You bet it'll spark some comments.
I'm throwing the B.S. flag down on that. Grey deposits? It says right in every manual you can find, or shows in a picture, a black oily coating. When mine was leaking, I'd get exactly that on my plugs, and lots of it. Now I get just a little bit, about the same on every plug, which I've been told is normal.