93 ZJ 4.0L will not start only below 45 Fdegrees..?? - North American Grand Cherokee Association
North American Grand Cherokee Association

Go Back   North American Grand Cherokee Association > Grand Cherokee Forum > Jeep Grand Cherokee Lounge-ZJ/WJ
Nagca.com is the premier Jeep Cherokee Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
Old 02-25-2017, 10:59 AM   #1
marrrk
Junior Member
Grand Rookie
 
Join Date: Feb 2017
Posts: 1
Default 93 ZJ 4.0L will not start only below 45 Fdegrees..??

my 1993 ZJ WITH 4.0l WILL ONLY START ABOVE 45F DEGREES... ANY SUGGESTIONS..?
marrrk is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-02-2017, 12:00 PM   #2
caotsolo
Junior Member
Grand Rookie
 
Join Date: Mar 2017
Posts: 1
Default

faulty temp sensor maybe. try holding the pedal to the floor in clear flood mode to see if cutting the fuel back will help it start
caotsolo is offline   Reply With Quote
Old 03-17-2017, 06:23 PM   #3
DisposableHero
Junior Member
Grand Rookie
 
Join Date: Mar 2017
Location: Arlington, Va
Posts: 7
Default

Sounds like you need a new engine computer or a capacitor replacement which can be done if you have a little soldering experience.

Take a hair dryer and aim it at the engine computer in the engine bay for a few minutes to heat up the computer... See if it starts after the ECU is warm.
DisposableHero is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 02:34 PM.



Powered by vBulletin® Copyright ©2000 - 2017, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.