CHEVY SMOKING

1995 Chevrolet Truck

Tiny

kyleb

February, 12, 2009 AT 6:01 PM

Engine Performance problem
1995 Chevy Truck V8 Four Wheel Drive Automatic 100, 00 miles

i have a 1995 5.7L pickup. Recently I noticed it starts
to smoke (exhaust) when it warms up. I have 120
pounds of pressure in every cylinder. Nwe plugs and wiresand all new ac last year?

FOUND 16219 RELATED QUESTIONS

3 Answers

Tiny

rasmataz

February, 12, 2009 AT 6:29 PM

. I have 120 pounds of pressure in every cylinder is this both wet and dry test? 350CID should range from 160-180 psi w/ a tolerance of 20% up or down

The smoke is it blue in color?

Tiny

kyleb

February, 12, 2009 AT 7:44 PM

Yes it is blue it seems to start when it warms up

Tiny

Don Oliver

February, 12, 2009 AT 8:00 PM

Alfull low compression if wet tested. Blue smoke with low compression sounds like a tired bottom end of the engine. Blue smoke puffs when hot and starting is usually valve stem seals. Blue smoke when running usually bad rings on pistons. Either allowing oil past the rings into the combustion chamber or pressurizing the engine enough to suck oil through the pcv into the engine. Good luck

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