Valve cover pcv/Oil catch can
02-04-2019, 02:55 PM
#1
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Year: 2000 Limited
Model: Cherokee (XJ)
Engine: 4.0L I6
Valve cover pcv/Oil catch can
I'm wondering if it would hurt my 4.0 to install a catch can and route both breather hoses with no check valve to a catch can and then out the catch can to my new afe power intake.
02-04-2019, 05:35 PM
#2
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My catch can is in between the rear ccv orifice and manifold vacuum. The front valve cover breather is open with a small filter on it. I empty maybe a tbsp out of the can every oil change. I can't prove that it helps but oil vapor in the intake charge promotes detonation and that is important to me.
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