My truck has been puffing white smoke out of the left tailpipe for some years, now there is oil blowing out of the left exhaust pipe. Any answers why?
10

Asked by heavychevy1 May 09, 2015 at 03:39 PM about the 1992 Chevrolet C/K 1500 454SS RWD

Question type: Maintenance & Repair

1992 Chevy z71 truck with a 350 engine

6 Answers
143,745

T_S_T answered 8 years ago

Bad valve guide seal,s in head on that side,letting oil come through the exhaust,or bad ring on piston.

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157,435

Bob answered 8 years ago

As T_S_T said, valve guide seal or piston ring / cylinder issues.

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157,435

Bob answered 8 years ago

Pull the spark plugs and look for an oily one or one that has gunk built up on it. That would be the cylinder where the problem is.

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