Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Jeep cranks but wont start... whats wrong?

Thread Tools
 
Search this Thread
 
Old 08-01-2012, 04:35 PM
  #1  
Member
Thread Starter
 
chuckd2008's Avatar
 
Join Date: Apr 2009
Location: frankfort, ky
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Year: 1991
Model: Cherokee
Engine: 4.0
Default Jeep cranks but wont start... whats wrong?

I replaced the crank position sensor thinking that was it clean the distributor ends and am getting a spark. It has some gas in the tank but has been sitting for about 2 months. The last time it was driven was for one day and it stalled and ended up needing to clean the throttle position sensor then fired right up. now it will crank and crank but wont fire. The battery is kinda weak but it is still cranking hard enough that it would be able to start. Any help or insight is appreciated. This is no longer my daily driver but want to drive it on the weekends and wanting to have it running in time for winter.
Old 08-01-2012, 04:40 PM
  #2  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 29 Likes on 28 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

spray starting fluid in tube to throttle body see if it fires sounds like fuel issue
Old 08-01-2012, 05:57 PM
  #3  
CF Veteran
 
DESERTXJ206's Avatar
 
Join Date: May 2011
Location: Glendale,Az
Posts: 1,458
Likes: 0
Received 2 Likes on 2 Posts
Year: 1990
Model: Cherokee
Engine: 4.0l 6Cyl
Default

Originally Posted by freegdr
spray starting fluid in tube to throttle body see if it fires sounds like fuel issue
I agree same issue mine had when my fuel pump was failing. I actually poured gas down the throttle body to verify everything was working. The Jeep would run until no more fuel was in the intake, then would die.

You can verify fuel pressure by renting a gauge at any autoparts store and screwing it onto the male schrader valve on the fuel rail. It should read 39psi I belive.
Old 07-31-2019, 04:51 PM
  #4  
Newbie
 
alabamajeepguy's Avatar
 
Join Date: Jul 2019
Location: mobile
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0
Default

try turning on the key but dont start it for 2 or 3 seconds the turn off and repeat this will double prime the line if its afuel line issue then try to start if it does not start pop hood and check the valve at the fuel rail with a standard screw driver if properly primed fuel should come out in a healthy spay.. if it does not then do a check on your 2nd in fuel filter may be clogged,besure to check you fuse/relay box make sure everything is good .if so crawl under and checkyour connectionat the fuel pump make sure its good. then as a last resort .get a replacement kit. i found it pretty easy to rebuild even after watching a youtuube vid or 2. i did not have to drop my tank to remove mine it just unscrews. one thing you have to watch for is theirs a seal/ring small and black you need to make sure it does not fall into the tank when removing or replacing.i been having a similuar issue with my 96 and i crawled all over it replacing damn near everything . i localized it to fire so been tracing it hope to have mine running soon just
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Atticus8866
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
12-11-2016 12:58 PM
Jackson Hill
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
09-28-2016 12:31 PM
frado2jr
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
25
10-11-2014 08:49 AM
MWR
Cherokee Chat
8
03-23-2013 11:03 AM
gfsman10
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
9
12-21-2012 10:38 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Jeep cranks but wont start... whats wrong?



All times are GMT -5. The time now is 07:11 PM.