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		The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board
For those who like to troubleshoot...

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01-18-2016, 12:08 AM

#26

shippman

Registered User

Join Date: Jan 2013

Location: Roanoke, TX

Posts: 39

Re: For those who like to troubleshoot...

Quote:

Originally Posted by mattcrp1

That was fun. I love odd ball problems like that. So in short the crank case pressure was "whistling" past a seal in the back? No oil leak?

Actually it was sucking air in the rear seal because of a vacuum caused by the PCV system.

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