Throttle body on 95 Cherokee
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Junior Member
Joined: Jun 2021
Posts: 51
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Model: Cherokee (XJ)
Throttle body on 95 Cherokee
Lately I've been seeing people put a spacer under the throttle body 4.0 liter 6-cylinder motor what does that actually do for the motor? mine does not have one from the factory...
CF Veteran
Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
It does absolutely NOTHING. Some people think it boosts horsepower. It does not.
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran
Joined: Dec 2015
Posts: 3,038
Likes: 338
From: PA
Year: 1997
Model: Cherokee
Engine: 4.0L
I wouldnt bother with a spacer on a 4.0L unless you have clearance issues. Spacers were used to boost performance back when everything used carburetor, but fuel injection just runs different and doesnt see the same gains. Its a waste of time and money. You would be better off slapping a racing sticker onto the valve cover.
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