Why won't my jeep start?
CF Veteran
Joined: Nov 2010
Posts: 5,840
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
If it starts with the engine COLD, but won't start with a hot engine, then the crankshaft position sensor is suspect. It can suffer from thermal (heat related) failure. If you replace it, buy a Mopar crank sensor directly from Jeep. Aftermarket crank sensors are "hit and miss" with a lot of miss.
Another possibility (although less likely) is the ignition coil.
Another possibility (although less likely) is the ignition coil.
Banned
Joined: Oct 2012
Posts: 1,744
Likes: 2
From: USA
Year: 1998
Model: Cherokee
Engine: 4.0L i6
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
zumer715
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
Jul 8, 2022 05:17 PM
Gtrsrlly
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
Aug 25, 2015 11:50 AM
Brynjaminjones
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
Aug 22, 2015 05:01 AM
14lgreer
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
Aug 21, 2015 01:46 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)