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.

98 xj long start

Old Jul 20, 2013 | 12:06 PM
  #1  
cameronscherokee's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2011
Posts: 63
Likes: 0
From: new york
Year: 1998 classic
Model: Cherokee
Engine: straight 6
Default 98 xj long start

I have a 98 xj that I swapped a 95 motor into it runs great no flaws other them it takes a bit of time for it to start it cranks and cranks then starts after maybe 50 seconds any ideas it has a new fuel pump and runs perfect thanks people
Reply
Old Jul 20, 2013 | 02:32 PM
  #2  
allevolution's Avatar
Member
 
Joined: Jul 2013
Posts: 121
Likes: 0
Model: Cherokee
Default

Whats fuel pressure @ key on?
Reply
Old Jul 20, 2013 | 03:44 PM
  #3  
RTorrez1's Avatar
CF Veteran
 
Joined: Sep 2011
Posts: 4,172
Likes: 4
From: Riviera, Texas
Year: 1998 Sport
Model: Cherokee
Engine: 4.0
Default

Does it do it all the time or just when it's cold? If only when it's cold or sitting for awhile you possibly have a stuck return check valve. If that is the case next time when it's cold turn the key on so you can hear the fuel pump prime. Do not start it. Do that 2 or 3 times and see if it will start up quicker. If so the check valve is your problem and it is draining the fuel rail while it sits. Give that a try and let us know if it helps or not.
Reply
Old Jul 20, 2013 | 04:08 PM
  #4  
94JeepCherokeeMan's Avatar
CF Veteran
 
Joined: Jun 2011
Posts: 1,023
Likes: 1
From: Southern Idaho
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
Default

Yeah it just sounds like your fuel isn't sticking around in the rail after sitting. Do as Robert Torrez recommended.
Reply
Old Jul 20, 2013 | 04:35 PM
  #5  
motoo344's Avatar
Member
 
Joined: Jun 2013
Posts: 186
Likes: 0
Model: Cherokee
Default

Originally Posted by RTorrez1
Does it do it all the time or just when it's cold? If only when it's cold or sitting for awhile you possibly have a stuck return check valve. If that is the case next time when it's cold turn the key on so you can hear the fuel pump prime. Do not start it. Do that 2 or 3 times and see if it will start up quicker. If so the check valve is your problem and it is draining the fuel rail while it sits. Give that a try and let us know if it helps or not.
This has worked for me as well, with the same issues.

Does it start after you try it and fail? If so try the above.
Reply
Old Jul 20, 2013 | 05:14 PM
  #6  
MtnHermit's Avatar
Seasoned Member
 
Joined: Dec 2009
Posts: 387
Likes: 2
From: Colorado
Year: 1997
Model: Cherokee
Default

Originally Posted by RTorrez1
Does it do it all the time or just when it's cold? If only when it's cold or sitting for awhile you possibly have a stuck return check valve. If that is the case next time when it's cold turn the key on so you can hear the fuel pump prime. Do not start it. Do that 2 or 3 times and see if it will start up quicker. If so the check valve is your problem and it is draining the fuel rail while it sits. Give that a try and let us know if it helps or not.
Indeed!!! I've been doing the Poor Man's Prime for years. Ever since I was clued in on this forum. If it has sat for an hour or more: PMP!
Reply
Old Jul 20, 2013 | 11:34 PM
  #7  
BimmerJeeper's Avatar
Banned
 
Joined: Oct 2012
Posts: 1,744
Likes: 2
From: USA
Year: 1998
Model: Cherokee
Engine: 4.0L i6
Default

How does one fix a faulty return check valve?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
28
Jan 8, 2025 11:36 PM
investinwaffles
Modified XJ Cherokee Tech
11
May 18, 2021 12:02 PM
Ashs1714
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
Sep 4, 2015 10:14 PM
Gtrsrlly
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
Aug 25, 2015 11:50 AM
petejeep95
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
Aug 22, 2015 11:39 AM

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

Thread Tools
Search this Thread

All times are GMT -5. The time now is 08:14 PM.