Question about 2005 Jeep Cherokee 2.8
Knocking noise on top of engine and blowing oil
Blowing oil where.?
SMOKE or liquid oil.
but id be all over noise, and liquid oil, like a wood pecker finding grubs.
Posted on Mar 31, 2014
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Posted on Jan 02, 2017
I agree, these vehicles have a problem with the blend doors and since the accuators hit the door when it opens and closes, it breaks the doors. and it's a huge job to replace them.
Posted on Mar 12, 2009
SOURCE: oil leak in my 92 jeep cherokee
The most likely place for an engine to start leaking oil (when it's coming from the top and not the bottom) is around the valve covers -- the gasket goes bad. Next most likely is camshaft seals.
Sometimes just tightening the valve cover botls will stop it or at least reduce it.
Posted on Apr 29, 2009
Check the Trans fluid level with it running and at operating temperature. Jeep NAG1 transmissions are known to have the input electric seal leak trans fluid. Not an exspensive fix add Mopar ATF4 and then relace the guild seal.
Posted on Jul 20, 2009
First, if the noise is from the upper part of the engine and is more of a tapping than a knock, likely you have a problem in the valvetrain, most often a bad lifter or worn rocker arm. If the noise is low, deep inside, the noise is from a bearing. This is generally accompanied by lower than normal oil pressure. Regardless of the underlying cause, correcting the cause will not stop the knock. To do that correctly, the engine needs to be removed and all crankshaft bearings and the crankshaft itself need to be replaced (crank can sometimes be "undercut" and thicker bearing shells can be used depending upon the amount of wear.) If caught very early, sometimes only one bearing can be replaced in-car, but in 99% of all cases I have ever seen, most will fail again, sometimes more severely if done this way.
Posted on Dec 10, 2009
Assuming the water is getting hot, (you could touch the hoses to make sure), then it is the controls, the vacuum the controls use, the vacuum servo that operates the valve, or the valve itself.
It is easiest to start with the last, because you can watch it move from the engine compartment, as someone else turns the temp switch high and low.
Posted on Feb 22, 2010
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