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.

BEST no start cherokee ever!!

Thread Tools
 
Search this Thread
 
Old Apr 23, 2023 | 06:32 PM
  #46  
cruiser54's Avatar
::CF Moderator::
 
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by dmoe69
You sent the photo of the black wires coming out of the distributor while I was typing my last post. To the Forum: Is the sync sensor a necessity for the engine to run? It is not for a RENIX era model.
Not on Renix, but yes on everything else.
Reply
Old Apr 23, 2023 | 06:39 PM
  #47  
cruiser54's Avatar
::CF Moderator::
 
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Have all 4 spark plugs been removed yet? compression test done?
Reply
Old Apr 23, 2023 | 07:55 PM
  #48  
dmoe69's Avatar
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2021
Posts: 561
Likes: 112
From: Western Washington
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L
Default

Originally Posted by cruiser54
Not on Renix, but yes on everything else.
I've wanted to believe it possible for this year's engine to run without a sync sensor. I've also tried not to speculate as to what happened under the hood that night, but if the engine won't run without that sync sensor, whatever it was had enough force to separate the sync sensor connector and rip one side of the connector off of the wires.
Reply
Old Apr 23, 2023 | 08:13 PM
  #49  
onestrongwriter's Avatar
Thread Starter
Member
 
Joined: Apr 2023
Posts: 216
Likes: 11
From: west central Michigan
Year: 1991
Model: Cherokee (XJ)
Engine: 2.5L
Default

Originally Posted by cruiser54
Have all 4 spark plugs been removed yet? compression test done?
why are you thinking compression test? Probably when I do get to doing these things, I will take photos and videos and probably should start new threads... Its kinda difficult to find some things I'm looking for in the search..
kinda need to know what tools to look for... check prices re: loaner vs harbor freight.. also, I have a small OBD2 reader.. should I get an adapter for the 6 pin, they aren't that much.. would it maybe find something that isn't showing up with the key trick?

The only thing that has been done was putting the wires back on the distributor, clicking the wire back on plug 1.. and cranking per suggestion here..
and posting a 1000 pics here and searching google and youtube..

The only things Ive found of my husband's testing tools so far is a couple voltmeters, his toaster (battery load tester), and a vac/fuel pressure tester likely from the 70s but nothing to go with it.. Shrader wise anyway
I'm sure he has other stuff somewhere, but this is the first time I've had to infiltrate his garage.. he has been the master mechanic for 50 years, professionally for 30.. I prefer to leave his "OMG she has pms" hiding spot alone lol I have learned my ocd does not like his ocd lol


Last edited by onestrongwriter; Apr 23, 2023 at 08:15 PM.
Reply
Old Apr 23, 2023 | 11:12 PM
  #50  
onestrongwriter's Avatar
Thread Starter
Member
 
Joined: Apr 2023
Posts: 216
Likes: 11
From: west central Michigan
Year: 1991
Model: Cherokee (XJ)
Engine: 2.5L
Default

and I found his compression tester... probably tuesday.. I've got to go to him tomorrow so I can try to get him working with his therapists... He does more with me than he does with them.
Reply
Old Apr 24, 2023 | 06:54 AM
  #51  
cruiser54's Avatar
::CF Moderator::
 
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

I think the plugs may tell a story. Simple to do.
Reply
Old Apr 24, 2023 | 09:24 AM
  #52  
dmoe69's Avatar
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2021
Posts: 561
Likes: 112
From: Western Washington
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L
Default

Nobody is going to fault you if you decline to remove the plugs and do a compression test. However, to date no actual testing has been done, and our perspective on what happened that night is based on your perspective, which seems to be, it was a clear dry night, and there was nothing in the road. You’ve also sent many photos of the engine looking for the “smoking gun”, which we haven’t seen.

As I see it, there are three probable options: Something environmental, a critter (my personal favorite, I’m not sure why), and a mechanical failure. The compression test will give us a very good indication of the actual condition of the engine. It would also give you piece of mind that when we get the engine running again, there is a degree of certainty that the vehicle will be reliable, without fear of a reoccurrence.

On the other hand, after you get some parts and we get it running, it may become obvious what the cause is, or build confidence that the problem must have been something in the environment (or a critter!).

Last edited by dmoe69; Apr 24, 2023 at 10:13 AM. Reason: Sp
Reply
Old Apr 24, 2023 | 09:40 AM
  #53  
dmoe69's Avatar
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2021
Posts: 561
Likes: 112
From: Western Washington
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L
Default

BTW, the bolt holding the distributor is 7/16" and the spark plugs are 5/8". I think you have already watched a video on swapping out a distributor, so you know not to pull the old one out until certain alignment details are completed.
Reply
Old Apr 26, 2023 | 03:48 AM
  #54  
J33p3r96's Avatar
Newbie
 
Joined: Apr 2023
Posts: 3
Likes: 1
Default

Wait before anything else. I recently bought one. Guy had it months without getting it to stay running. Couldn't figure out why it would die immediately after starts. I got there paid him the cash. Plugged in one sensor on the right side of engine compartment on the right side wall next to air box and it was like nothing ever happened. Ran like a champ for 4 hours straight the next day lol
Reply
Old Apr 26, 2023 | 03:20 PM
  #55  
onestrongwriter's Avatar
Thread Starter
Member
 
Joined: Apr 2023
Posts: 216
Likes: 11
From: west central Michigan
Year: 1991
Model: Cherokee (XJ)
Engine: 2.5L
Default

Originally Posted by J33p3r96
Wait before anything else. I recently bought one. Guy had it months without getting it to stay running. Couldn't figure out why it would die immediately after starts. I got there paid him the cash. Plugged in one sensor on the right side of engine compartment on the right side wall next to air box and it was like nothing ever happened. Ran like a champ for 4 hours straight the next day lol
can you take a pic of that sensor please so I can see.. I cant even get this thing running... but it was and something happened on the freeway that apparently tore apart my distributor pick up tube.. which by the way has some ohms..
Reply
Old Apr 26, 2023 | 03:24 PM
  #56  
cruiser54's Avatar
::CF Moderator::
 
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by onestrongwriter
can you take a pic of that sensor please so I can see.. I cant even get this thing running... but it was and something happened on the freeway that apparently tore apart my distributor pick up tube.. which by the way has some ohms..
Before going down another rabbit hole looking for a miracle cure from someone else, please fix the known issues first.
Reply
Old Apr 26, 2023 | 03:33 PM
  #57  
onestrongwriter's Avatar
Thread Starter
Member
 
Joined: Apr 2023
Posts: 216
Likes: 11
From: west central Michigan
Year: 1991
Model: Cherokee (XJ)
Engine: 2.5L
Default

plugs.. left to right is 4 3 2 1..
oil on the outside of 4.. big shock lol didn't even pay attention to the end of it.. idk what that red is...
3.. the wire came out of the boot on the plug, plyers took the boot off the plug but left the metal on the plug, its fine lol
and anyway..


4...3 boot....3....2....1

4.....126,
3.....114
2......139
1......142

I did take pics of the compression test, so if you want to see them to make sure my numbers are right thats fine... I did only do it once per cyl... Ive seen videos taking an average of 3 times but I have to go slow... I'm new at this lol
just remember... plug 1 was the one that had the original wire mess up... no plug was especially difficult to start turning..
Reply
Old Apr 26, 2023 | 03:34 PM
  #58  
onestrongwriter's Avatar
Thread Starter
Member
 
Joined: Apr 2023
Posts: 216
Likes: 11
From: west central Michigan
Year: 1991
Model: Cherokee (XJ)
Engine: 2.5L
Default

Originally Posted by cruiser54
Before going down another rabbit hole looking for a miracle cure from someone else, please fix the known issues first.
but the issues are unknown... lol
Reply
Old Apr 26, 2023 | 03:43 PM
  #59  
cruiser54's Avatar
::CF Moderator::
 
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

The wires on the distributor are unknown?

Those plugs show a very lean mixture and they are very worn. Obviously no catastrophic damage in any cylinder.
Perhaps the intake manifold bolts aren't tight?
Must be checked.
Reply
Old Apr 26, 2023 | 03:52 PM
  #60  
onestrongwriter's Avatar
Thread Starter
Member
 
Joined: Apr 2023
Posts: 216
Likes: 11
From: west central Michigan
Year: 1991
Model: Cherokee (XJ)
Engine: 2.5L
Default

the why is unknown..

what if the pressure regulator is bad?

we did not change the plugs and wires as they "looked" new and the odometer read 094k at the time of purchase
the story we got was it was an old farmer that just didnt use it much... 103698 on the odometer today
Reply



All times are GMT -5. The time now is 05:03 AM.