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Severe smoking in only one cylinder
I have severe smoking in my number 4 cylinder. It's so bad that I keep fouling out spark plugs. I have done a compression test and it tested at 150psi which is just fine. I also have no blow-by coming from my oil. Yet the car smokes really bad. I think that it is just vavle seals, but I'm not sure. Does anyone know if only one vavle guide would go at 87.000 miles, or what do you think? Any suggestions would be great.
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