Rough/Choppy Idle sometimes
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 897
Likes: 2
From: NJ
Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
Cleaned it with CRC Throttle body cleaner. For the TB I sprayed and used a plastic bristle brush or tooth brush. Had to do this many times to get everything off. I would hold the throttle open with my hand to get the brush down in there. Same process for the IAC but used a paper towel to wipe it down as well.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 897
Likes: 2
From: NJ
Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
I pretty much did what this guy did but the actual cleaning took a little while to get it where it was in my pictures. Used close to a full can.
Seasoned Member
Joined: Aug 2014
Posts: 486
Likes: 1
From: Lehigh Valley PA
Year: 1989
Model: Cherokee
Engine: 4.0 renix
Ya I'll be doing this this weekend.
My idle has been smoothed out considerably after running some restore and a fresh oil change. o2 sensor didn't seem to help as much as I thought it would, but it always helps regardless.
Cleaning like this has been way overdue for me.
My idle has been smoothed out considerably after running some restore and a fresh oil change. o2 sensor didn't seem to help as much as I thought it would, but it always helps regardless.
Cleaning like this has been way overdue for me.
CF Veteran
Joined: Jan 2012
Posts: 3,170
Likes: 312
From: Australia
Year: 1997 (RHD)
Model: Cherokee (XJ)
Engine: 4.0 ltr
As always Google is your friend. Found a crappy scribbled pic, but is has all the appendices of the throttle body, so to speak.
IAC is localed in the back at the right side of the throttle body in this pic.
IAC is localed in the back at the right side of the throttle body in this pic.
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