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1989 Jeep Cherokee Stalled


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Travis
Anonymous Poster
studie75@aol.com

Jan 9, 2008, 11:12 AM

Post #1 of 5 (7687 views)
post icon 1989 Jeep Cherokee Stalled Sign In

I hope someone can help me out. I have a 1989 Jeep Cherokee 4.0L fuel injected. has over 205k miles. She has been running fine and then last week my wife was driving it and it stalled on her. I haven't been able to start it since. The engine turns over. It just sounds like there is just no spark. I had just filled up the gas tank 2 days before. I don't know if there would be any coorelation, but I had noticed that the Tach gauge had quit working earlier the same day while I was driving. If anyone has any suggestions, please let me know.


Double J
Veteran / Moderator
Double J profile image

Jan 9, 2008, 12:02 PM

Post #2 of 5 (7680 views)
Re: 1989 Jeep Cherokee Stalled Sign In

i not a jeep expert but i have had friends with these....i know they say these things are notorious for crankshaft position sensors going bad...
they are also a pain in the ()() to replace.
there located on the drivers side of the bell housing.....
did you check for spark???
check that first to see if you have it.
i believe that this controls the fuel pump start up as well.
do you hear the pump run when the key is turned to the on position?
the cam sensor is i believe located in the distributor.its the hall effect switch.
i know a guy who ran outta gas in one of these,after putting in fuel ,it still wouldn't restart.he had to replace the cps to repair it...
just my thoughts........hope i helped in some small way...
jim



(This post was edited by JIM N on Jan 9, 2008, 12:11 PM)


way2old
Veteran / Moderator
way2old profile image

Jan 9, 2008, 5:03 PM

Post #3 of 5 (7674 views)
Re: 1989 Jeep Cherokee Stalled Sign In

Methinks Mr. JIM N is correct on his assumption of the part that may have failed to inhibit the rotational mass to keep going after initial connection between the electrical componet and mechanical portion of engine mechanical mass.LaughLaughSlySlyShockedAngelic



Being way2old is why I need help from younger minds


Double J
Veteran / Moderator
Double J profile image

Jan 10, 2008, 2:06 PM

Post #4 of 5 (7672 views)
Re: 1989 Jeep Cherokee Stalled Sign In

wow.......
I just printed that and am going to hang that up for all to see...

i wish i could top that but i just gots me a 6th grade education.......lol....TongueCoolWinkTongueTongueTongueTongueTongueTongue

i remember one time at the dealer i was overheard saying something real educated,i guess ,big words and all,to a customer on the service drive...
those wiseinheimers wrote it down and put it on the wall in the shop and added to it every day.it was their motivation....but they expected me to live up to it..

TITLED : WORDS OF WISDOM OR TRU-ISMS BY JIM.....
or something like that.....
so your on,i'll be expecting much more of that...lol.......


ricter
Anonymous Poster
ricter@cox.net

Apr 22, 2008, 2:44 PM

Post #5 of 5 (7563 views)
post icon Re: 1989 Jeep Cherokee Stalled Sign In

I found this after going running into my jeep not starting it worked for me. After spending time and money on parts i did not need

Jeep Cherokee Limited Crank, No Start
Q. Hi! The Jeep has periods when it will not start for a couple days (cranks fine but won't fire), then it will mysteriously start again. A friend suggested that it may be the CPS - I checked it has 200 oM - when I'm cranking by hand it's little bit changing - it should be OK. But again, wouldn't this also effect the engine during those times that it was running?

This problem occurs during rainy and sunny weather so I don't think it's a moisture or water intrusion problem. Is there any part of the ignition system that only affects starting that could be causing this problem?
• 1989 Jeep Cherokee Limited
• 4.0 liter
• Automatic transmission
• 170,000 miles
I found some forum where some guy had the same:
"I am having the same or similar problem with my wifes 1990 Cherokee. I have found a place that tests the ICM. It may take a while to find a place in your area. I suggest you go in person and talk to the people in your better parts stores.
I have been unsuccessful so far in finding the fault. My ICM has been tested twice and passed both times. I have power to the ICM and the coil checks within parameters. This has been a very frustrating problem for me. I'm about ready to drive it off a cliff and call it a day. Good luck."
So my question is; what is the reason of that?
Thanks for help...
Pawel
A. This was a widespread problem for Chrysler and they issued a couple of TSBs to address the problem. The first was:
Models:
1989 MJ & XJ Bodies
Subject:
4.0L No-Start, Hard Restart, or Engine Die-Out. Vehicles Equipped With Automatic Transmission Only.
Index:
DRIVEABILITY
Date: December 29, 1989 No.: 18-57-89 (C18-23-9) P-14
Body Code Legend:
MJ - COMANCHE (RWD, 4WD) XJ - CHEROKEE/WAGONEER (RWD, 4WD)
SYMPTOM/CONDITION:
Some 1989 vehicles equipped with the 4.0L engine and automatic transmission may experience an engine no-start, hard restart, or an engine die-out. This condition may be caused by low signal strength from the crank position sensor due to a larger than desired distance to the flywheel sensing ring.
DIAGNOSIS:

Check to see if the vehicle has a slotted crank position sensor:
1. If the vehicle is equipped with a slotted crank position sensor (see Figure 1), check to see if the CPS grommet on the top of the transmission bell housing has been updated (see Figure 2). If the CPS grommet has not been updated, replace the CPS grommet per the Repair Procedure outlined below.
If the vehicle has a slotted crank position sensor and new CPS grommet, do not install a new sensor, but reinstall the slotted sensor that was on the vehicle and verify that it is good using procedures in the 1989 Jeep Service Manual 81-370-9045 on page 14-87.
2. If the vehicle does not have a slotted crank position sensor already installed, then proceed with the Repair Procedure.
PARTS REQUIRED:
1 Crank Position Sensor (slotted) P/N 83100067
1 Crank Position Sensor Grommet P/N 83100068
REPAIR PROCEDURE:
1. Turn the ignition switch to the "OFF" position.
2. Disconnect the Crank Position Sensor (CPS) from the engine harness.
3. Raise the vehicle using a lift.
4. Remove the old CPS and grommet.
5. Install the new CPS grommet.
NOTE: THE NEW CPS GROMMET MUST BE REPLACED SO THAT THE MAXIMUM SIGNAL OUTPUT CAN BE OBTAINED FROM THE NEW CRANK POSITION SENSOR.
6. Install the new Crank Position Sensor and loosely attach the retaining bolts.
7. Firmly press down on the slotted hole side of the CPS until it bottoms on the machined lip of the bellhousing. While holding the CPS down against the bellhousing, tighten the bolt on the slotted side of the CPS to 16 ft.lbs.
8. Tighten the remaining attaching bolt to 16 ft.lbs.
NOTE: MAKE CERTAIN THAT THE CRANK POSITION SENSOR IS COMPLETELY BOTTOMED ON THE MACHINED LIP OF THE BELLHOUSING AND IS AS CLOSE AS POSSIBLE TO THE FLYWHEEL SENSING RING WITHOUT CONTACTING IT.
9. Secure the lead of the CPS to the retaining clip on the bellhousing to prevent its contact with the exhaust manifold.
10. Lower the vehicle.
11. Connect the CPS to the engine harness.
If this repair has been made, or hasn't fixed the problem, the other TSB is 18-54-89 REVISION A recommending cleaning of the throttle body assembly, DIY: Cleaning Throttle Bodies, and replacement of the PCM.
PARTS REQUIRED:
1 ECU (Automatic Transmission) P/N 53007842
1 ECU (Manual Transmission) P/N 53007843
1 Mopar Choke and Linkage Cleaner P/N 4549619






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