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Old 07-03-2010, 10:42 PM   #3
N8ECH
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Join Date: Jul 2010
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Re: 01 Durango R/T 5.9L dropping 1 cylinders, runs rough

NOOB:

I know this is an old post, but the 5.9 motors have a plenum gasket on the bottom of the intake manifold that goes bad.

When this happens, engine runs rough and oil consumption goes up.

Way to diagnose this is to remove breather hat from throttle body and look down inside with a flashlight. IF you see wetness and alot of black stuff, you have the failed gasket.

Don
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