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It is usually caused by excessive blow by out of the crankcase. Blow by is usually caused by worn/cracked rigs or a hole in the piston. The fastest test to see if yo haveworn rings is to hold on the brake put it in drive and give i gas while holding on the brake and see if you have smoke ot of wherete pcv vale should be. if you do it proably means you nead a rebuild or a new motor. I know because i just had this problem with a 454.
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What would cause oil in air filter in a 89 wrangler and you had a compression check and the compression was fine?
bad pcv valve Blow by
How check PCV valve?
You can just blow into both sides. it's a one way valve.
What problems will a kinked PCV valve hose cause on a 1998 grand voyager 3.3 liter?
Blow by. Oil will come out where you don't want it to.
How important to change PCV valve Nissan pickup 1994?
It is very important to change PCV valve. If valve is old it will plug or seize. This will cause oil pressure to rise and may cause leaks. Most likely the valve cover gaskets will leak if PCV valve is plugged.
Bad PCV valve smoke?
A bad PCV valve can cause the engine to smoke. The valve is easy to change in most engines to correct the problem.
Oil in the air filter?
Normal, you get a little blow back from the PCV valve system...
Would stuck or frozen valves also cause oil to blow up into the air filter breather canisterseem as though it's losing compression and blow blue smoke from the exhaust?
valve guides and oil rings are most likely worn but a pcv valve can be stuck and blow blue smoke
What causes engine blow by out the oil stick on Pontiac 455?
put on a new PCV valve.
Can a drity PCV valve cause misfire?
No, the only thing a dirty PCV valve will cause is a build-up of gas pressure inside the engine which make seals and gaskets fail.
Will a defective PCV valve cause as engine to not run?
If the vacuum hose connected to the PCV valve was disconnected, it would idle poorly if at all, otherwise, no.
Can a bad PCV valve cause oil consumption?
yes. if the valve is plugged or stuck closed, oil can be sucked into the intake through the pcv breather.
Why is engine blowing oil through dipstick?
I'm not a mechanic / technician but I believe that a plugged PCV valve or hose will cause oil to blow through the engine oil dipstick
