89 jeep renix idles high but when in gear and I hit the gas, she stutters and feels like it's out of gas won't go. But when I unplug vacuum line from map sensor. It has a regular idle and drives fine.


Asked by Nov 28, 2014 at 05:05 PM about the 1989 Jeep Cherokee 4 Dr Laredo 4WD

Question type: Maintenance & Repair

Jeeps. Map, iac, tps, crank position sensor, and fuel filter have been replaced they are all
new by me. This all happend first from tightend the belt then idle went up. Next week
battery died overnight then it would start, run in idle but then put it in gear I can drive slow
but when giving it gas sputters and bogs like there is no gas. So I unplugged the map
sensor vacuum so I can drive it but bad gas milage.

1 Answer


Replace map. I would say the intake air flow sensor but not sure if jeeps have those. Noticed you didn't have answers just trying to help. Goodluck!

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