85 suburban smoking help

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Oct 10, 2011 | 7:15 PM

ttmreaper

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85 suburban smoking help

can anyone help i just bought an 85 suburban k20 carbed 350 ran great for a 3weeks now it runs ruff and smokes bad like bug killer bad any ideas

Oct 10, 2011 | 7:29 PM

kevinkpk

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From: kevinkpk

What color is the smoke?

Oct 12, 2011 | 9:23 PM

ttmreaper

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blueish white i think its valve seals but that shouldnt cause it to run ruff

Oct 13, 2011 | 9:55 AM

SabrToothSqrl

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blue/white

are your loosing antifreeze?

usually a head gasket if your blowing white/blue smoke...

Oct 13, 2011 | 1:46 PM

kevinkpk

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From: kevinkpk

Head gasket will cause white smoke, and run rough.

Oct 13, 2011 | 2:17 PM

SabrToothSqrl

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guage

check your compression...i bet one or more is low.

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