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Old Aug 18, 2010 | 05:18 PM
  #1  
the jeep man 94's Avatar
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From: eden ny
Year: 2000
Model: Cherokee
Engine: 4.o l ho
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hey anybody kno y i got oil in the troddle body ?
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Old Aug 18, 2010 | 05:24 PM
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Bustedback's Avatar
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Oil, or just some black carbon stuck on the throttle body and butterfly?
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Old Aug 18, 2010 | 05:34 PM
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From: eden ny
Year: 2000
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seem like its oil how bad is that
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Old Aug 18, 2010 | 05:38 PM
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From: Loomis,California
Year: 1987
Model: Cherokee
Engine: 242 inline six
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start by making sure your ccv system is no plugged or any of the lines are broken
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Old Aug 18, 2010 | 05:51 PM
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ya already did that but thanks
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Old Aug 18, 2010 | 05:52 PM
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From: Loomis,California
Year: 1987
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then your most likely getting blow by from the rings,time for a new motor
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Old Aug 18, 2010 | 08:45 PM
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From: eden ny
Year: 2000
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will i dont think that but the valve cover gasget is leaking can that just be the problem ?
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Old Aug 18, 2010 | 09:11 PM
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From: Port Orange, FL
Year: 1993, 1994
Model: Cherokee
Engine: 4.0L HO
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Originally Posted by the jeep man 94
will i dont think that but the valve cover gasget is leaking can that just be the problem ?
Valve cover gasket will just leak oil onto the block, not into the throttle body. The only way for oil to get into the throttle body is for it to come in through the CCV line, which is that big black one running from the valve cover to the intake. Under normal operation, oil/water vapor in the engine travels through this line to be combusted in the cylinders and exhausted out the back.

It's not uncommon for a little oil to go through, and for carbon to build up on the throttle body. First things first, I'd clean the throttle body and the intake tube to see how bad things are. Check the throttle body periodically to see if it's getting fresh oil on it. If it's getting a lot of buildup, then either there is something wrong with the CCV valve, or you have piston ring blow-by.

Also, try this. On the back of the valve cover is a small, hard plastic, line. It runs from the valve cover to the intake, it provides vacuum to the CCV valve built into the valve cover. Sometimes this becomes clogged with what can only be described as 'gunk', oily nasty carbon. Pull that line and make sure it's clean all the way through. That might help, since the CCV won't function correctly without proper vacuum.

If you are still getting oil in the intake, give the engine a compression test. This will point out the general health of the motor. You should be able to rent a tester from Autozone or any chain autoparts store, or buy one for $30-40. Let us know what the results are.
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Old Aug 18, 2010 | 10:01 PM
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From: eden ny
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thanks man for the help it not a dd thou just to mess around in the mud with and its a small amount of oil hardly any just seeing what it can beeeeeeeee
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