Computer Issue
03-25-2019, 03:28 PM
#2
Senior Member
Join Date: Mar 2016
Location: Oklahoma
Posts: 621
Likes: 0
Received 9 Likes
on
9 Posts
Year: 1992
Model: Cherokee
Engine: 4.0L L6 PowerTech (stock)
I would guess that you have a short in wiring. First look at the battery cables from the positive for he start and from the negative to the block, then follow your other major grounds: negative to body, block to firewall, and power distribution center to body.
You're looking for frayed coatings or touching bare metal to bare metal - or just close and it moves and touches when driving. I'd for sure check around the distributor and the coil as well as the alternator.
You're looking for frayed coatings or touching bare metal to bare metal - or just close and it moves and touches when driving. I'd for sure check around the distributor and the coil as well as the alternator.
03-26-2019, 04:06 AM
#3
CF Veteran
Join Date: Mar 2016
Posts: 3,207
Received 603 Likes
on
513 Posts
Year: 96
Model: Cherokee (XJ)
Engine: 4.0
It could be quite a few things
03-26-2019, 10:27 AM
#4
Newbie
Thread Starter
Join Date: Mar 2019
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee (XJ)
I would guess that you have a short in wiring. First look at the battery cables from the positive for he start and from the negative to the block, then follow your other major grounds: negative to body, block to firewall, and power distribution center to body.
You're looking for frayed coatings or touching bare metal to bare metal - or just close and it moves and touches when driving. I'd for sure check around the distributor and the coil as well as the alternator.
You're looking for frayed coatings or touching bare metal to bare metal - or just close and it moves and touches when driving. I'd for sure check around the distributor and the coil as well as the alternator.
03-26-2019, 10:28 AM
#5
Newbie
Thread Starter
Join Date: Mar 2019
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee (XJ)
noted, I’m not as savvy but usually when operating the vehicle after about 30-45min of consistent running the car will cut off
03-26-2019, 01:26 PM
#6
CF Veteran
The chances of this being a computer problem or an electrical short are small. A short circuit involved with primary or secondary ignition is much more likely to blow a fuse, making the problem permanent, and not intermittent. If the short was transient enough to avoid blowing fuses, the vehicle would more likely stumble momentarily, but probably not shut off.
More likely candidates for vehicles that shut off while driving would be failing ignition coil, crankshaft position sensor, camshaft pickup (sensor), fuel pump, or ignition switch. To name a few.
03-27-2019, 10:19 AM
#7
Newbie
Thread Starter
Join Date: Mar 2019
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee (XJ)
What is (TSI) or (PSI)?
The chances of this being a computer problem or an electrical short are small. A short circuit involved with primary or secondary ignition is much more likely to blow a fuse, making the problem permanent, and not intermittent. If the short was transient enough to avoid blowing fuses, the vehicle would more likely stumble momentarily, but probably not shut off.
More likely candidates for vehicles that shut off while driving would be failing ignition coil, crankshaft position sensor, camshaft pickup (sensor), fuel pump, or ignition switch. To name a few.
The chances of this being a computer problem or an electrical short are small. A short circuit involved with primary or secondary ignition is much more likely to blow a fuse, making the problem permanent, and not intermittent. If the short was transient enough to avoid blowing fuses, the vehicle would more likely stumble momentarily, but probably not shut off.
More likely candidates for vehicles that shut off while driving would be failing ignition coil, crankshaft position sensor, camshaft pickup (sensor), fuel pump, or ignition switch. To name a few.
this makes sense. Thank you! The more I’m finding out
Trending Topics
03-27-2019, 05:25 PM
#8
CF Veteran
Join Date: Mar 2016
Posts: 3,207
Received 603 Likes
on
513 Posts
Year: 96
Model: Cherokee (XJ)
Engine: 4.0
1) failing crankshaft position sensor
2) failing camshaft position sensor
Most advise to replace the Crankshaft Sensor with a genuine Mopar part
Thread
Thread Starter
Forum
Replies
Last Post
johnny james
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
05-31-2014 05:02 PM
ralphb
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
04-09-2014 07:09 AM
JEEPMONKEY1
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
05-02-2012 11:20 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)