1990 4.0L 5 spd Won't Start
Thread Starter
Newbie
Joined: Feb 2010
Posts: 5
Likes: 0
From: Portland
Year: 1990
Model: Cherokee
Engine: 4.0L
Problem started awhile ago, wouldn't start, battery is good (optima red). Rolled it down a hill and compression started, and ran fine.
I took out the starter and cleaned up all the connections, and that seemed to fix the problem. Now it won't start again.
Replaced the solenoid, nothing. Ran a wire from the +terminal to the ignition switch connection on the solenoid and it turned over. Decided it had to be something in the wiring, so i went to napa and bought a push button switch to bypass whatever was wrong, got the jumper switch all wired up and now nothing!
I don't know what is wrong, maybe the solenoid i bought got messed up in the process? Is there a way that what I did could've busted the starter. Its a manual so there is no NSS to mess with and the fan turns off when I go from acc to start, so I don't think its the ignition switch. I must have a ghost wire short? This problem is really getting to be a bare, any input would be much appreciated! Its a 1990 laredo 4.0L with a 5 spd (not sure which model tranny) and a mitsubishi starter.
I took out the starter and cleaned up all the connections, and that seemed to fix the problem. Now it won't start again.
Replaced the solenoid, nothing. Ran a wire from the +terminal to the ignition switch connection on the solenoid and it turned over. Decided it had to be something in the wiring, so i went to napa and bought a push button switch to bypass whatever was wrong, got the jumper switch all wired up and now nothing!
I don't know what is wrong, maybe the solenoid i bought got messed up in the process? Is there a way that what I did could've busted the starter. Its a manual so there is no NSS to mess with and the fan turns off when I go from acc to start, so I don't think its the ignition switch. I must have a ghost wire short? This problem is really getting to be a bare, any input would be much appreciated! Its a 1990 laredo 4.0L with a 5 spd (not sure which model tranny) and a mitsubishi starter.
Ran a wire from the +terminal to the ignition switch connection on the solenoid and it turned over. Decided it had to be something in the wiring, so i went to napa and bought a push button switch to bypass whatever was wrong, got the jumper switch all wired up and now nothing!
Member
Joined: Feb 2009
Posts: 158
Likes: 2
From: Conroe, Tx
Year: 1996 & 2001
Model: Cherokee (XJ)
Engine: 4.0
Could be clutch switch - I don't were its located - all I deal with is AT - Had one on my Bronco push down clutch to get it to work about 2 times. Being it would start by rolling down hill or pushing - that were I would start checking, post what you fine.
Seasoned Member
Joined: Nov 2009
Posts: 279
Likes: 0
From: sarasota Fl
Year: 91
Model: Cherokee
Engine: 5.9
Im not sure if yours has a clutch switch or not but wiring in a start button should bypass that anyway just like with the wire to the batterey did. I would try the wire to the batterey again and make sure your wired up right.
Trending Topics
Thread Starter
Newbie
Joined: Feb 2010
Posts: 5
Likes: 0
From: Portland
Year: 1990
Model: Cherokee
Engine: 4.0L
Took the starter to get checked this morning, lady said she couldn't get it to crank, so i bought a new one. I put that in with the button switch in line and it started right up. Don't know if it was the motor or the solenoid, but whatever it was it works now and i got this neat little push button start. Thanks for the suggestions good jeepin to ya.
Thread
Thread Starter
Forum
Replies
Last Post
seansr
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
13
Oct 20, 2025 02:48 PM
Tj Cope
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
21
Nov 16, 2022 08:32 PM
Gtrsrlly
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
Aug 25, 2015 11:50 AM
smithj
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
Aug 24, 2015 10:24 PM
Brynjaminjones
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
Aug 22, 2015 05:01 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)



