1993 4.0 Slightly High Idle Speed
01-14-2011, 08:44 AM
#1
Newbie
Thread Starter
Join Date: Nov 2009
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
1993 4.0 Slightly High Idle Speed
I've been trying to track down a 1200 rpm idle for a while now and read tons of threads on the subject. Done the throttle body cleaning, IAC cleaning, check TPS, IAT, CTS, MAP and leak check with propane with no results.
The interesting data point for me is that during the winter with cold ambient temperature (eg 15 deg F or less) it idles normally at about 800 rpms. I hate the "throw parts at it" approach and can't help but think that there is a specific answer. Thanks in advance!
Bruce
The interesting data point for me is that during the winter with cold ambient temperature (eg 15 deg F or less) it idles normally at about 800 rpms. I hate the "throw parts at it" approach and can't help but think that there is a specific answer. Thanks in advance!
Bruce
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
27
07-26-2022 07:52 PM
rdr8887
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
33
08-08-2017 07:28 AM
Shamrock96
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
11-18-2015 12:24 PM
rdr8887
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
08-24-2015 07:48 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)