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XJ Stutters while Accelerating

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Old 05-11-2011, 05:58 PM
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Year: 1992
Model: Cherokee
Engine: 4.0
Question XJ Stutters while Accelerating

I've got a 1992 Jeep Cherokee Laredo 4x2 that's started stuttering like it's starving for fuel but only after it's warmed up... about 10-20 minutes straight driving no matter I'm driving the highway or streets.
I've replaced the fuel pump and tried filling up with different companies 87 octane fuel from different service stations, and I've also replaced the Throttle Position Sensor with a new one I got through Chrysler.
It started off that the fuel felt as if it was just cutting off for a split second at a time at only low speeds but has come to cutting off for a split second for 5 to 10 second intervals but only when I press the accelerater. Sometimes I'm able to rev up the RPMs while in gear and it clears it up for a while but it'll come back as long as the Jeep is hot. I'm afraid it'll do perminant damage since it's been stuttering at 55-60 mph on the freeway... the entire truck convulses pretty hard. Please Help!!!
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