i get smoke from the exhaust after shifting between 2wd and 4wd, what would be the cause?

Asked by ntskem2010 Oct 26, 2015 at 07:26 PM about the 1998 Chevrolet Blazer LT 4-Door 4WD

Question type: Maintenance & Repair

the smoke will dissipate after a while, no smoke when shifting back to 2wd

5 Answers

F_O_R answered 9 years ago

Sounds like rings or maybe valve guides. Just a guess but your truck probably has high miles on it. Try using a better grade oil and maybe a heavier grade as well.

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ntskem2010 answered 9 years ago

its not a lot of oil, but it on happens when Im shifting, if it were rings or valve guides wouldn't it burn oil all the time?

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Rowefast answered 9 years ago

Never said how many miles on her, assuming a lot, it is a characteristic for oil to seep threw valve guides & seals on a Chevy. with lots of miles. Don't sound like rings to me.

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