Question about 2001 Jeep Cherokee

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Sounds funny i replaced the valve cover gasket in my 1990 jeep cherokee becuase it was causeing oil to blow back in to my air filter but know when i start it up it sounds differant and the exhaust seems to smoke and the grond at the end of the exhast is black

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It is possible that your PCV Valve is not functioning as well as it should,,,also,,it may be that your engine has excessive wear in the piston rings and lower oil rings,,causing excessive blow by into your engine crank case.
This will of course affect how your engine runs and how much oil is consumed.
Check PCV valve and replace as neccessary.
If this doesnt work,,i'd suggest taking it to a mechanic.

Posted on Jan 19, 2009

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