Valve cover pcv/Oil catch can
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Newbie
Joined: Jan 2019
Posts: 2
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From: Virginia
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.
CF Veteran
Joined: Mar 2015
Posts: 1,203
Likes: 155
From: Northern CT
Year: 1995
Model: Cherokee
Engine: Turbo 4.0
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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