Re: IMG Issues


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Posted by 92sub (198.208.251.23) on 07:39:03 03/06/08

In Reply to: IMG Issues posted by AustinTX

Yes.
external oil leaks at the front or rear of intake to block sealing surface.
Internal vacuum leaks that draw oil out of the lifter valley. Easy to test for.....pull the PCV valve out of the valve cover (leave connected to hose). Place your right thumb over the valve cover hole. Disconnect the breather tube that comes out of the other valve cover. Cover the breather tube with your left thumb. With the engine running, you should build PRESSURE in the engine after just a few seconds (don't plug the system for more than a couple seconds). If you build a VACUUM, you have an intake manifold gasket leak.



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