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Why is motor blowing oil and dipstick out

When u crank it up blows dipstick out then oil

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  • Cars & Trucks Master
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Agree with the above answer. The piston is inside a cylinder and it compresses the gas. If there is a hole around the piston the oil is forced up through the dipstick. This is a symptom of a bad problem with your engine. It may be cheaper to buy a used engine at a wrecking yard than to repair it.

Posted on Apr 17, 2015

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  • Cars & Trucks Master
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You have a problem with the rings that seal the combustion chamber from the crankcase .
Try replaceing the PCV valve but I think the problem is much bigger then that at this point its kind of late the damage it done .

Posted on Apr 17, 2015

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Posted on Jan 02, 2017

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1 Answer

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No solution from me, Note: Sounds like your pretty familiar with the Positive crankcase ventilation (PCV). You said the valve is pulling a vacuum I am assuming it is from the intake manifold side correct? With the PCV was working sure seems like it would keep the oil from coming out of the dipstick tube. I am stumped as well, sounds almost like too much blow by from the cyclinders you already stated that with the possible broken compression rings?

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