Mechanics

TAILPIPE SMOKING

2008 Chevrolet Corvette • 35,000 miles

Why is car smoking light blue smoke mostly at idle when it is not useing any oil on dipstick
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Cyclepops
April 21, 2013.




Blue smoke is oil burning, check spark plugs for ash deposits a comp test or a leak down test will give a good indication as to ring condition.

Mhpautos
Apr 22, 2013.
Did com test and leak down 180 -183 all, no leak off no black on plugs, all rubber around valves looks great [as it should ]. Shows some oil in intake but can not figure how it's getting there took hoses off vacum sys, drove 40 mi still smoking same. Thanks for any help u can give me terry
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Tiny
Cyclepops
Apr 22, 2013.
Cold I have a cracked [ broken oil [ ring and leak down still be good

Tiny
Cyclepops
Apr 22, 2013.
And I don't understand what o-ring?

Tiny
Cyclepops
Apr 22, 2013.
Engine may be breathing heavy, due to blow by constant blue smoke is oil burning, either from faulty rings or worn valve guides and valve guide seals.

Mhpautos
Apr 22, 2013.
Ok thanks

Tiny
Cyclepops
Apr 23, 2013.
Closing thread, you can re post if you have further questions, do not respond to this message.

Mhpautos
Apr 24, 2013.

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