Question about 1991 GMC S-15 Jimmy

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CONDASATION IN BOTH VALVE COVERS

I HAVE A 1991 GMC JIMMY 4.3 AND IT HAS BLOW BY ON ENGINE WILL THIS CAUSE CONDASATION ON OIL FIIL CAP AND CRANK CASE VENT LINE ON OTHER VALVE COVER.

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  • sullivanl70 May 11, 2010

    sounds like a blown head gasket or worse a cracked block or head

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  • 29 Answers

Sounds like you have a bad pcv valve or a more unlikely a head gasket about to go out

Posted on Jan 19, 2009

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Where is located the oil breather on 1991 nissan 300zx


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1 Answer

A LITTLE WATER BUILD UP ON INSIDE OF OIL FILL CAP


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Jan 18, 2009 | 1991 GMC S-15 Jimmy

1 Answer

CONDASATION ON INSIDE OF OIL FILL CAP


If it is milky it is coolant due to bad head gaskette.
If it looks like durt oil needs to be changed.
You can also check the oil dip stick fo deposition.
Please let me know if you need more info. I am here to help
Good Luck

Jan 18, 2009 | 1991 GMC S-15 Jimmy

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