Hello,I have a 1996 Grand Cherokee that has me baffled by what its doing. Its basicly shutting off at any given time but it starts right back up. I have replaced EVERYTHING that may or may not relate to my problem. So far I have replaced: fuel pump (with dealer part), plugs, cap, rotor, wires, crank sensor, dist. module, ignition coil, and the engine controller (2times). If anyone has any suggestions on what Im missing here I would greatly appreciate it!!

 

Put a new ground wire on it. You might have a short related to a bad ground wire. I'd start there and see if that helps.

Also check your vacuum lines to the MAP sensor. If there cracked they can cause some odd problems also.

 

My wife had a Plymouth Voyager that would do this and I had to clean the IAC (I think that is what it was) and it took care of the problem.