93 Cherokee xj. Auto trans. 4.0, motor chokes out when holding accelerator, usually after its been warmed up and sometimes when I shut it off after its been run and try to start it again! Motor has throttle body spacer, air raid intake, new cap, plugs, wires, rotor button, fuel filter, radiator, water pump, tps sensor, coolant temperature sensor. Any help would be better than none...

 

Do a fuel pressure test.

 

X2

 

Wouldn't it run like crap all the time if it had bad fuel pressure?

 

Not necessarily. Check the fuel pressure. Ever replace the fuel filter since you've owned it?

 

Replaced fuel filter and fuel pump. Still no change. It seems to be something to do with when it gets warmed up. Starts up fine after its been sitting for like 7 hours or so. And because its colder out I can just pop the hood and wait a few minutes and it will start again...roughly though but better than if hood was down.

 

Test your CPS. Or, just throw some water on it when this happens and see if that cures it.

 

Sorta sounds like what I'm going through. GAG !

That "warm" thing that turns into HNS.

 

i guess it was the sending unit. i had a crack on one of the metal line and i guess it was getting bad fuel pressure

 

Elaborate on this for the guys who contributed to your thread.

 

I'm having. Same issue my fuelpump whines a bit but it. Does it on acceleration. In gear then when i shut it off after driving. Awhile. It hesitates to start and when it. Does i have to rev it to 3000 n hold it for a min then it acts right

 

Make sure its certified Holy water...

 

Cruiser is a awesome. Man