engine hesitation

hiram · **Posted:** Sun Jul 19, 2009 1:43 pm

Not sure if this is the right section for this post.

Anyways, does anyone ever experience a slight and I mean a very slight hesitation sometimes when driving down the road? Or a slight hesitation at idle sometimes? I do. The dealer said the computer had to be flashed, so the overdrive kicked in at a higher speed. It still does it and I was just wondering if anyone else experienced this before.

JeepinJarhead03 · **Posted:** Sun Jul 19, 2009 2:01 pm

does it tend to happen at the same rpm or rpms?

hiram · **Posted:** Sun Jul 19, 2009 2:25 pm

Usually in overdrive
speed mostly at @ 45 mph.

sometimes i'll be at a red light and the jeep almost shuts off but comes back on (rarely but happens enough to notice 3x's a week)

JeepinJarhead03 · **Posted:** Sun Jul 19, 2009 3:04 pm

oh ok, i thought it was a studder hesitation at certain rpms

last air filter change?

KKommando · **Posted:** Sun Jul 19, 2009 4:56 pm

The new liberty have electronic controlled throttle.

KKommando · **Posted:** Sun Jul 19, 2009 4:57 pm

The new liberty have electronic controlled throttle.

Diggerfreek · **Posted:** Sun Jul 19, 2009 5:12 pm

Ok, first off, right section

Second, what octane of fuel are you running and how many miles on the KK?

hiram · **Posted:** Sun Jul 19, 2009 6:46 pm

87 octane
20k miles

Diggerfreek · **Posted:** Sun Jul 19, 2009 6:54 pm

never mind on that idea.... have them re flash it as it does sound like a software problem

Boblemoche · **Posted:** Sun Jul 19, 2009 11:10 pm

i does happen to me while on the cruise control sometimes. I usually dont mind but once this winter it did it like the engine shut off for one second and a light came on on the dash. took it to the dealer , they replaced some cables on the throttle. I still have the slight hesitation sometimes but never as bad as that time

richd · **Posted:** Sun Jul 19, 2009 11:55 pm

hiram wrote:

Usually in overdrive
speed mostly at @ 45 mph.

sometimes i'll be at a red light and the jeep almost shuts off but comes back on (rarely but happens enough to notice 3x's a week)

Im not sure if this works for Jeeps,but on Dodge Chargers,we can recalibrate the throttle buy turning key to on position,press the gas pedal down then let up pedal slowly.Turn off key,then start and the throttle should take out the hesitation.I had to do this to my Charger,and it worked.Its one of the biggest complaints.I hope it works.Good Luck.

Scar0 · **Posted:** Mon Jul 20, 2009 4:49 am

richd wrote:

hiram wrote:

Usually in overdrive
speed mostly at @ 45 mph.

sometimes i'll be at a red light and the jeep almost shuts off but comes back on (rarely but happens enough to notice 3x's a week)

Im not sure if this works for Jeeps,but on Dodge Chargers,we can recalibrate the throttle buy turning key to on position,press the gas pedal down then let up pedal slowly.Turn off key,then start and the throttle should take out the hesitation.I had to do this to my Charger,and it worked.Its one of the biggest complaints.I hope it works.Good Luck.

Have you had all the TSB's done? If so, then you will need to take it to the dealer they can recalibrate the throttle response.
They key trick doesn't work any more, according to my service guy.

hiram · **Posted:** Mon Jul 20, 2009 8:54 pm

Scar0 wrote:

richd wrote:

hiram wrote:

Usually in overdrive
speed mostly at @ 45 mph.

sometimes i'll be at a red light and the jeep almost shuts off but comes back on (rarely but happens enough to notice 3x's a week)

Im not sure if this works for Jeeps,but on Dodge Chargers,we can recalibrate the throttle buy turning key to on position,press the gas pedal down then let up pedal slowly.Turn off key,then start and the throttle should take out the hesitation.I had to do this to my Charger,and it worked.Its one of the biggest complaints.I hope it works.Good Luck.

Have you had all the TSB's done? If so, then you will need to take it to the dealer they can recalibrate the throttle response.
They key trick doesn't work any more, according to my service guy.

I am kind of baffled

i did the key thing this morning, i drove to work (18 miles) no hesitation.
and 18 miles back no hesitation. i am going to give it a couple of days and see what happens b4 i go back to the dealership.

engine hesitation

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