97 cherokee 4.0L LOSE OF POWER AND PUTTERING

[bigred2683]

I need some help i have a 97 cherokee 4.0 4x4 it spits and spurts on and off i can crank it up and runs smooth sometimes for hrs but sometimes it acts like it wats to shut and starts suttering i have replaced the destributor,cap, rotor and plugs and wires and map sensor and battery an i have done a fuel pressure test on it and everything passed but still have have the issue has anyone ever had the problem and can anyone help me figure it out

 

[graewulf]

Have you tried some injector cleaner? Maybe there is some junk in the system.

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[SteelHeadz]

And or check the fuel filter.

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[Bounty__Hunter]

Move the wires to the Crank Position Sensor and see if you can make it run rough. That model is known for a short in the wiring to the CPS. Could also be a bad CPS.