throttle body
#1
Senior Member
Thread Starter
Join Date: Sep 2012
Location: Largo, FL
Posts: 509
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1995
Model: Cherokee
Engine: 4.0 HO
throttle body
I had the machine shop take the bottlekneck out of a throttle body. While the iac and tps sensor where out, I cleaned them. When I installed the sensors, I checked the functionality of the tps and all was good. I just installed the throttle body and my idle went straight to 2000 and stayed there. I pulled it out and put the stock throttle body back on and idle went back to normal. What could be causing the high idle with the throttle body I had machined? And is there another way to rest the pcm without disconnecting the battery? Yes, I could disconnect the battery, but the state will charge me a fine if I do, because I have an interlock device installed. Gotta love dui's
#2
CF Veteran
Join Date: Jan 2013
Location: west chester, pa
Posts: 19,216
Likes: 0
Received 39 Likes
on
35 Posts
Year: 1999
Engine: 4.0
I just bored out my throttle body myself at the machine shop where I work at. I have no idling problem. I used same original butterfly too.
I didn't reset my PCM either.
Either something wrong with your sensors or the gasket the throttle body is sitting on. Maybe the gasket where the idle air housing is bolted on the throttle body too.
I didn't reset my PCM either.
Either something wrong with your sensors or the gasket the throttle body is sitting on. Maybe the gasket where the idle air housing is bolted on the throttle body too.
#3
Cherokee Forum Vendor
Join Date: Mar 2011
Location: Lynden, WA
Posts: 1,448
Likes: 0
Received 1 Like
on
1 Post
Year: 1998
Model: Cherokee
Engine: 4.0
If you take the throttle body off and put a flashlight under it, does the light shine through the sides of the throttle plate? Gotta make sure it fits good against the walls.
#6
CF Veteran
Join Date: Jan 2013
Location: west chester, pa
Posts: 19,216
Likes: 0
Received 39 Likes
on
35 Posts
Year: 1999
Engine: 4.0
I only bored out the bottle neck on one of the throttle body. Using same bitterfly plate, it seems like there's .030 gap around. And I measured three stock throttle bodies, they have the same gap. It's harder to tell because the bottleneck block out the light. I used feeler gauges.
Of course if u bored all the way from top to bottom, u would need to make a new butterfly plate.
Of course if u bored all the way from top to bottom, u would need to make a new butterfly plate.
Thread
Thread Starter
Forum
Replies
Last Post
cpnwrench
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
13
02-15-2024 08:09 AM
libengan
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
11-06-2015 09:16 AM
zumer715
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
10-03-2015 07:07 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)