Grand Cherokee Ask the Question Thread
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 741
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
That automatic door locking feature is programmable in the overhead console. That still doesn't change the window problem however.
Well I'm stumped
I have a 98 ZJ with a blown up 4.0 that I bought off my boss for $200. I had a spare 4.0 sitting in the garage that I figured I ll use.
I yanked the old engine out and shoved the spare in.
Used the ZJ dizzy on it.
Doesn't matter what I did, it wouldn't fire up. Fuel pressure is at 47 lbs
New coil, new Cps, the timing chain was worn out so I replaced that.
I even tried to unlock using the key fob and manually unlock every door several times.
I even saw the tip about splicing into the purple wire with yellow tracer and ground it.
I tried playing with the dizzy. Setting it at TDC and all, moving it one tooth back and forward, revolving the base to see it anything catches.
Ugh. Any other things I'm missing?
I have a 98 ZJ with a blown up 4.0 that I bought off my boss for $200. I had a spare 4.0 sitting in the garage that I figured I ll use.
I yanked the old engine out and shoved the spare in.
Used the ZJ dizzy on it.
Doesn't matter what I did, it wouldn't fire up. Fuel pressure is at 47 lbs
New coil, new Cps, the timing chain was worn out so I replaced that.
I even tried to unlock using the key fob and manually unlock every door several times.
I even saw the tip about splicing into the purple wire with yellow tracer and ground it.
I tried playing with the dizzy. Setting it at TDC and all, moving it one tooth back and forward, revolving the base to see it anything catches.
Ugh. Any other things I'm missing?
Well I'm stumped
I have a 98 ZJ with a blown up 4.0 that I bought off my boss for $200. I had a spare 4.0 sitting in the garage that I figured I ll use.
I yanked the old engine out and shoved the spare in.
Used the ZJ dizzy on it.
Doesn't matter what I did, it wouldn't fire up. Fuel pressure is at 47 lbs
New coil, new Cps, the timing chain was worn out so I replaced that.
I even tried to unlock using the key fob and manually unlock every door several times.
I even saw the tip about splicing into the purple wire with yellow tracer and ground it.
I tried playing with the dizzy. Setting it at TDC and all, moving it one tooth back and forward, revolving the base to see it anything catches.
Ugh. Any other things I'm missing?
I have a 98 ZJ with a blown up 4.0 that I bought off my boss for $200. I had a spare 4.0 sitting in the garage that I figured I ll use.
I yanked the old engine out and shoved the spare in.
Used the ZJ dizzy on it.
Doesn't matter what I did, it wouldn't fire up. Fuel pressure is at 47 lbs
New coil, new Cps, the timing chain was worn out so I replaced that.
I even tried to unlock using the key fob and manually unlock every door several times.
I even saw the tip about splicing into the purple wire with yellow tracer and ground it.
I tried playing with the dizzy. Setting it at TDC and all, moving it one tooth back and forward, revolving the base to see it anything catches.
Ugh. Any other things I'm missing?
"I even tried to unlock using the key fob and manually unlock every door several times."
I ran across this in my travels... Don't know if it applies to your year or not though.
How to reset the security system...
Open the driver's side door. Close the other doors.
Press the power door-lock switch on the keyless entry fob.
Close the driver's side door.
Leave all doors closed for about 16 seconds until the Vehicle Security Light on the instrument cluster stops flashing quickly.
When the light flashes at a slower rate, this signifies that the system has been reset and rearmed.
Last edited by Bugout4x4; Jul 1, 2018 at 07:04 AM.
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Then, unless you live where it gets below zero for a good number of weeks during the winter, you don't need anything special.
Cheapest battery at AutoZone (just for example's sake) is 690 CCA and 860 CA with a 1 yr warranty for 100 bucks. All really just depends on what you're looking to spend on a battery. If you have a couple hundred bucks, go with an Interstate or Sears DieHard.
Cheapest battery at AutoZone (just for example's sake) is 690 CCA and 860 CA with a 1 yr warranty for 100 bucks. All really just depends on what you're looking to spend on a battery. If you have a couple hundred bucks, go with an Interstate or Sears DieHard.
We have had trouble getting my jeep to run the a.c. right. Whenever we put on the gas we can hear a flap and the vents will stop working and shift to the defroster. When I let off the gas, it will switch back. We checked all the vacum lines, but we found that the vacum line under the battery box keeps coming undone. It's like it's got some kind of back flow or pressure knocking it off. The short time we got the line to stay on, the air seemed to run just fine. Any suggestions on what's happening and/or how-to fix it? Thanks in advance.
Beach Bum
Joined: Jul 2011
Posts: 6,123
Likes: 22
From: Cape Hatteras, North Carolina
Year: 2000 WJ
Model: Grand Cherokee
Engine: 4.0
Vacuum hose may have a split on the end. Can cut off 1/2 inch and reconnect. Somewhat common due to engine heat and age. Check that first.
Got a 98 jeep grand Cherokee 5.2 v8 tranny fluids full, when goin into 2 gear it delays longer then it should but does shift it'll shift faster if I put my foot into it a little does the sane going into 3 rd would anyone know what that is? Maby shift silanoids or clutch plate or whatever?
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Got a 98 jeep grand Cherokee 5.2 v8 tranny fluids full, when goin into 2 gear it delays longer then it should but does shift it'll shift faster if I put my foot into it a little does the sane going into 3 rd would anyone know what that is? Maby shift silanoids or clutch plate or whatever?
230000 miles on 05 GC and engine light came on. codes pulled indicate temperature sensor in Nag1 transmission.
Check engine light came on when washed undercarriage but its been going into limp in mode (intermittently) when driven on highway at highway speed.
Where is this temperature sensor? self correcting electrical issue...?
Check engine light came on when washed undercarriage but its been going into limp in mode (intermittently) when driven on highway at highway speed.
Where is this temperature sensor? self correcting electrical issue...?
Last edited by #SH; Jul 21, 2018 at 07:13 PM.



Got my fingers crossed.