Which engine does this jeep have?
I had a similar problem with my 4 cylinder '95 and it was a faulty O2 sensor. Within a month of noticing the loss of power my "check engine" light came on and the OBDI code pointed me to it.
Change or clean intake air idle control
SOURCE: acceleration hesitation
Depends how long since your last tune up and mileage. I would do a normal oil change, oil filter, air filter and plugs. If she still does it, try checking for a vacuum leak. Start the vehicle and spray "lightly" carb cleaner around your vacuum lines. If you have a leak the engine will increase in idle suddenly. Replace the line or part. AS A LAST resort and pretty rare is the distibutor. They usually run about 75.00 to 110.00...hope this helps.
SOURCE: Power loss after running
loss of power can happen even if exhaust does not flow in other words you have a rstriction in the exhaust usualy the catalytic converter has collapsed any exhaust shop will be able to tell you right away, or when you loose power do you hear a hissing noise ? if so that is clearly a clogged converter replace the catalytic converter
SOURCE: 2005 Jeep wrangler w/rough idle and hesitates when you accelerate
try fuel injectors....run a bottle or two with full tank through it and see if that dont solve the problemo.....
SOURCE: 1999 jeep wrangler idles rough almost dies out now has a slight miss or hesitation while driving
Please be fast about checking your fuel pump. It is not giving enough fuel pressure.
Cheers.
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SOURCE: 88 jeep cherokee hesitates dureing acceleration
clean or replace the crank sensor on the back of the engine that runs off the flywheel
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