I have a 96 Cherokee and never had a problem with it untill 2 weeks ago.
It died while driving and have not ben able to get it going since.It is hard to start and when it does start it idles rough and dies when put in gear. I replaced the crank shaft sensor, spark plugs, plug wires, distributor cap and rotor, coil, and cleaned the IAC

 

Check all your ground connections. Wire brush them off good and make sure that they're tight.

 

Thank you will check them out

 

If you have a fuel pressure test gauge you should verify the fuel rail pressure.
There is a schraeder valve (bicycle tire air valve) on the fuel rail for testing....
For your year 4.0L the pressure is around 45-49 psi.
If the pressure is below 40 psi; this will stop the engine from running under load.

 

check your cam and crank position sensors they're infamous for going out

 

so if i have only 36psi is that the fuel pump

 

well we now know it is the fuel system

 

ok il replace the fuel pump let you guys know how it goes thanks