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?

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

Question type: Maintenance & Repair

1992 Chevy z71 truck with a 350 engine

5 Answers

31,585

You losing any coolant?

Not losing any coolant

58,535

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

1 out of 1 people think this is helpful.
31,585

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

1 out of 1 people think this is helpful.
31,585

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.

1 out of 1 people think this is helpful.

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