Air filter box part. Question
Thread Starter
Newbie
Joined: Jan 2012
Posts: 9
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From: Montana
Year: 1994
Model: Cherokee
Engine: 4.0 HO
Air filter box part. Question
What is this and do I need to leave it in the air box? I searched but could not find anything related. Partly cause I have no idea what its called. All help greatly appreciated
Junior Member
Joined: Jan 2012
Posts: 41
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From: SoCal
Year: 95, 94, 89
Model: Cherokee
you can remove it but I would leave it in, it's designed to direct the air flow towards the center of the tube to keep turbulence from forming as the incoming air passes over the ribs in the rubber elbow in your second pic.
CF Veteran
Joined: May 2009
Posts: 10,436
Likes: 72
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
People have all kinds of theories of what it is, but IIRC the FSM says its a Venturi to help pull vapors out of the charcoal canister.
Commonly removed, None of my jeeps had it.
Ive heard claims of improved MPG without it.
Commonly removed, None of my jeeps had it.
Ive heard claims of improved MPG without it.
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David Chauncey Clothier
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
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Aug 29, 2015 09:31 PM
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