1999 JGC 4.0liter issues
#1
Member
Thread Starter
Join Date: Apr 2011
Location: Kremmling, CO
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
1999 JGC 4.0liter issues
Started out last week with Jeep sputtering and ultimately dieing on the road. threw a Cam sensor code and fuel pump code. Finally got it started. limped it home and replaced cam sensor. Ran it a few times on short trips with no issues. Wife drove it 20 miles to work and it would lurch, tach would go to ZERO and then it picked itself up and ran again. Starts were rough for about 30-45 seconds and then smoothed out. She got it home and I replaced the fuel filter which was plugged horribly bad. I started it and fired right up smoothly and ideled well. She made it 5 miles before it would cut out, run and then cut out again. she made it most of the 20 miles before it finally just stopped running. She went out at 9pm and cycled the key 3-4 times and it started but would run roughly when stepping on the gas. this morning she said it fired right up.
I am wondering if the fuel pump is warming up and killing itself or if the throttle position sensor is wonky. Either way I'm thinking of replacing both as I am positive they are the Original equipment. She says no CIL is coming on. Just looking for other avenues. Could it be the crank sensor? Looked that up. fun times to replace that
Any help would be greatly appreciated
I am wondering if the fuel pump is warming up and killing itself or if the throttle position sensor is wonky. Either way I'm thinking of replacing both as I am positive they are the Original equipment. She says no CIL is coming on. Just looking for other avenues. Could it be the crank sensor? Looked that up. fun times to replace that
Any help would be greatly appreciated
#3
Old fart with a wrench
My opinion? It sounds like a failing crank sensor. You might also have a dirty IAC (idle air control). YouTube that.
Thread
Thread Starter
Forum
Replies
Last Post
PJ_Hunter
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
05-20-2017 01:34 PM
Jeffrey Littlefield Jr.
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
04-01-2017 12:40 PM
Bribel875
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
4
06-17-2016 02:04 PM
coloradojeepxjowner
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
7
11-05-2012 01:52 AM
Ragnaroeker
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
06-07-2009 11:19 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)