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  #1  
Old 01-12-2012, 12:50 PM
RammD RammD is offline
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Default Hesitation, Stutter and Jerk when accelerating at certain speeds?

I've had this issue since I got the truck but it seems to be getting worse. Basically, anytime I have to accelerate full throttle like entering a highway and needing to merge, or changing lanes on the highway...etc...this issue occurs nearly all the time.

When I have to floor it, there is a second or so of hesitation and lag, followed by what I could really refer to as "turbulence". It's a combination of a stutter and jerk until the truck kicks into gear and accelerates. This is a significant issue because entering a merge lane on a highway can be dangerous which is why I floor it to give myself time to get in lane and not have a person have to slam on their brakes because i'm not getting up to speed.

I spent about 10 minutes on a less congested highway the other day and just got to certain speeds and floored it and I noticed this issue seems more significant accelerating from 40, 50 or 60mph, vs. 20, or 30mph.
So if I floor it from 40, 50 or 60, the issue I mentioned occurs nearly all the time. From lower speeds if I floor it, the issue isn't present.

Any idea what could be the cause here? Thanks in advance.
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  #2  
Old 01-12-2012, 02:54 PM
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Turbovsix Turbovsix is offline
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I've posted numerous times on this very same condition - always from part throttle, cruising, to downshifting when entering a highway or something. It'll shudder, like it can't quite fully downshift, and I have to let off completely and then push the pedal again to stop it from doing that. It's troublesome. I've tried to duplicate with my dealer, but I can't duplicate it reliably. Always seems that if I'm in MDS at the time, this happens.
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Old 01-12-2012, 03:22 PM
RammD RammD is offline
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@Turbo,

I could definitely duplicate this issue with my dealer as long as they had 10 mins. to hop in the passenger side of my truck and go for a drive to the nearest on ramp of the closest freeway.

Could this issue have something to do with the electronic throttle control? Isn't there an electronic throttle control module or something I read about? Anyone have any ideas?
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Old 01-12-2012, 09:54 PM
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NMBowtie NMBowtie is offline
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Mine does the same thing, and seems to be getting worse lately. I have about 26k miles now.
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Old 01-13-2012, 11:17 AM
RammD RammD is offline
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I have 18k and this issue is getting worse. I know there are dodge
Service members here who may of seen this issue up close and personal.
Anyone one have any idea of what the cause of this may be?
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Old 01-13-2012, 12:54 PM
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I have the exact same issue on my 09. I have the MDS activated at the moment,just coz its winter and im just cruising around. Last night i disabled it and gave her a run for about an hour and had no hesitation or stutter. Even on particular ramps where i know it was happening. I dont know if this is the case for everyone but it worked for me.....It's worth a shot.
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Old 01-13-2012, 01:34 PM
RammD RammD is offline
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Quote:
I have the exact same issue on my 09. I have the MDS activated at the moment,just coz its winter and im just cruising around. Last night i disabled it and gave her a run for about an hour and had no hesitation or stutter. Even on particular ramps where i know it was happening. I dont know if this is the case for everyone but it worked for me.....It's worth a shot.
I have a Predator so I can deactivate MDS with the click of a button. I'll go for a run this weekend and duplicate the problem a few times, then disable MDS and go for another run and see if that makes any difference. I'll reply back after I've found out.
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Old 01-13-2012, 01:47 PM
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Good luck RammD. I hope it works man....
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Old 01-13-2012, 06:51 PM
RammD RammD is offline
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Alright, I disabled MDS with my Predator, and I just ran some runs on the highway and it appears Col is correct, I too disabled MDS and there was absolutely no hesitation or stutter at all! She drove smoother then she ever has! So MDS is definitely the culprit here. I know it sucks that those who don't have a predator or way of disabling MDS have to live with this..but at least we know what the actual "cause" is now.

I'll drive this tank of gas with MDS disabled and see how much worse it is then normal. As long as it is livable then I'll probably keep MDS off most of the time. If the MPG drop is significant then i'll enable MDS but anytime I'm entering a highway/merge lane, or have a need to floor it i'll try to do a quick stop and go FIRST to get OUT of MDS then floor it.

So it looks like your assessment of being in MDS and MDS maybe being the culprit was correct turbovsix. Thanks for the info COL.....that was an easy fix!
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Old 01-13-2012, 07:15 PM
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Turbovsix Turbovsix is offline
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Yes, I'll try doing some testing as well with MDS disabled.

Been a great truck for me so far, but there are a handful of issues like this with the vehicle that drive me crazy.
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