Question about 1996 Jeep Grand Cherokee

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Car won't run without foot on accelerator.

Car has the 6 cyl engine with 2 wheel drive and automatic x-mission. Car shuts down if you don't keep your foot on the accelerator. It starts like it is out of time, but when it runs, it revs up fine with no hesitation. Any idea where to start looking for a problem. I have never worked on a fuel injected car.

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Its very important that the throttle body especially around the throttle blade be spotless clean or they will stall every now and then. then progress to refuse to idle at all. take off the rubber air intake pipe from the top of throttle body [has 3 torqes screws] open throtle by hand and look for carbon/grease/soot etc were the throttle sits when closed. clean with toothbrush and some caeb cleaner get all black off and dont forget the blade, both sides and the edges. scrub then rinse with carb cleaner untill shiny.spray some cleaner in the hole that is on top off the body to. that is your idle air controll motor port.put back together.it will be hard to start at first so hold gas pedal half way down untill it starts then slowly [real slow] let foot off untill you are no longer pressing it. put in reverse and let it idle there a few seconds then do the same in drive. that should do it. sometimes it may stall a couple of times when driving dont hold foot on gas just let it die then restart this allows the computer to readjust its idle stratagee

Posted on May 06, 2010

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