Help Jeep Will Crank Just Not Start

[josh_haunert]

hi, i have a 89 xj 4.0l auto 4x4 with a start problem! it wont crank with the key but i can hook up a wire from the solinoid to the baterys and it cranks but it wont fire! one day i was driveing and it wa bads cuting out really bad well drove it home and parked it, then i went to start it the next morning it would crank but not fire!so i figured fuel pump so i checked fuel pressue and it was about 35psi! then i figured CPS and replaced it and distributor pickup, cap and rotor, plug wires, and spark plugs, coil, and the starter relay, also the ignition swich (not the key swich) now when you turn the key on the fuel pump or latch relay chaters i replaced the relays still does the same thing! but whil it chaters i get no spark at the coil, but if i pull the relay it gets spark but no fuel! also it i disconect the fuel pump it dont chater but i still get not spark! the only think i can think next it the pcm?

[boman40]

My wife's MJ had same problem awhile back. The wires that connect on the solenoid, they have fuseable links on them. Look for one or more that has burned up or open. If you can find someone to help you, have them hold the key to the start position and wiggle the wires if you can see any of them that are burned up. I remove all the wires from this area and installed a fuse box just to get rid of those links. Links are a real pain, where they are splice to the wires they corrode and cause all kinds of electrical problems.