dmwil

When accelerating after upshifting, I frequently feel hesitant throttle response between 1200 and close to 2000 rpms for about 1/2 a seond or so. It doesn't do it all the time, but still does it fairly freqently. Then, the power comes on suddenly, and strongly.

Any thoughts as to a problem, or is this normal? It is a manual tranny.

Windshear

Mine does the same thing. It sucks. I've heard it's because when in 4L the throttle would be to responsive with out it.

yellowjeeper85

mine does it too.. .just part of getting used to the fly by wire thing. my TJ and TJ would kinda do something similar... they'd go go go and then all of sudden REALLY GO!

but the JK isn't quite the same... but i do feel what you mean. i think its normal for the JK so i wouldn't worry that anything is wrong. I do notice it being less of an issue if you rev up more before shifting.. but then you're driving like a maniac (at least i do, haha!) to avoid that little blip and its sucking even more gas.. etc etc...

basically, i seemed to have gotten used to it and drive in a manner that isn't excessive, but keeps that from happening most of the time.

Enteric

Mine is an automatic, but very similar thing after shifting. Kinda dead lagging spot. I got the hypertech programmer, and it is GONE! Even if you don't change the tires and need the spedo calibration from the programmer, it gives a little boost of power, gave me some good results for gas milage, and got rid of the lagging. I am guessing it will do the same for the manual tranny, but it is honestly like a different Jeep. Try it you will like it. And I think they have a money back guarantee if you don't.

JKJeremy

mine does it too...it's normal with this jeep as others have said...i do notice it happens more when i'm driving like an ass though....maybe it's just my jeep trying to tell me that....

Offroadme

same here wish i had money for a super charger but my pockets are empty from all the other wonderful things i have done to my baby so far

SGT.

yupppp....same....

mjolnir

me too, seems to happen around 1600 - 1700 rpm for me

pearl-drum-man

Had some similar sypmtoms, what I would consider minor though. This was the one thing my CAI actually did improve though.

Doc_D

If you are accelerating and dropping the RPMs to 1,200 on an upshift (and still trying to accelerate) you are really lugging the engine.

Personally I don't even like to cruise under 1,500 RPM let alone accelerate below 1,500 rpm. Lugging the engine is about one of the worst things you can do to it.

Actually now that I think about it it wouldn't suprise me to find out that the throttle opening is limited by the drive-by-wire when load is very high and RPM is very low (when you're lugging the engine too much) to prevent excessive wear and tear on the bearings and to prevent pre-ignition/detonation.