I would suspect a bad connection on the crankshaft position sensor or a
dead body ground.

The CPS's plug and socket are located just above the manifold on our 88
and are in a heat soak position. I use a spray contact cleaner on them
and normally that fixes it. If not, it might need to be replaced. It
is located at the top edge of the bell housing and is difficult to get
at.

I also had that stalling when hot issue and had to wait for a restart
and in my case it was a rotted ground strap that runs from the rear of
the engine to the firewall. When cold it would steal a ground, then up
and die.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

jeepster87 wrote:
>
> My 87 xj wagoneer 4.0l, Dies after it reaches running temp. Then it won`t
> start till its cooled down. I replaced the following: fuel
> pump,coil,cap,rotor,wires,belt,thermostat,hoses,wa ter pump,fuel filter,all
> fuses inside and outin engine. Does anybody have any ideal what causing her
> to die?? thanks!

 

I would suspect a bad connection on the crankshaft position sensor or a
dead body ground.

The CPS's plug and socket are located just above the manifold on our 88
and are in a heat soak position. I use a spray contact cleaner on them
and normally that fixes it. If not, it might need to be replaced. It
is located at the top edge of the bell housing and is difficult to get
at.

I also had that stalling when hot issue and had to wait for a restart
and in my case it was a rotted ground strap that runs from the rear of
the engine to the firewall. When cold it would steal a ground, then up
and die.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

jeepster87 wrote:
>
> My 87 xj wagoneer 4.0l, Dies after it reaches running temp. Then it won`t
> start till its cooled down. I replaced the following: fuel
> pump,coil,cap,rotor,wires,belt,thermostat,hoses,wa ter pump,fuel filter,all
> fuses inside and outin engine. Does anybody have any ideal what causing her
> to die?? thanks!

 

I would suspect a bad connection on the crankshaft position sensor or a
dead body ground.

The CPS's plug and socket are located just above the manifold on our 88
and are in a heat soak position. I use a spray contact cleaner on them
and normally that fixes it. If not, it might need to be replaced. It
is located at the top edge of the bell housing and is difficult to get
at.

I also had that stalling when hot issue and had to wait for a restart
and in my case it was a rotted ground strap that runs from the rear of
the engine to the firewall. When cold it would steal a ground, then up
and die.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

jeepster87 wrote:
>
> My 87 xj wagoneer 4.0l, Dies after it reaches running temp. Then it won`t
> start till its cooled down. I replaced the following: fuel
> pump,coil,cap,rotor,wires,belt,thermostat,hoses,wa ter pump,fuel filter,all
> fuses inside and outin engine. Does anybody have any ideal what causing her
> to die?? thanks!