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  #13  
Old 01-20-2012, 09:44 PM
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Re: V8 tranny slip / engine vibration

So far my v8 limited 4x2 is ok (600 kms) but i am starting to get concerned on this issue and the other post about shuddering.... Expectation was really high on this vehicle....
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Old 03-15-2012, 04:23 PM
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Re: V8 tranny slip / engine vibration

Saw this thread and maybe its more related to the one I started a few weeks back. Again I have a transmission vibration when I accelerate from a dead stop. Today it happened very badly... almost like the wheels were slipping on gravel until the car got traction.

I plan on taking it to the dealer next week but Im not sure what to say to lead them in the right direction. I feel like simply saying "feels like its slipping" will make them come back with some BS excuse. Any help from people who took it in for the same issue would be appreciated.
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Old 03-15-2012, 05:46 PM
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Re: V8 tranny slip / engine vibration

I heard using other than 5W20 engine oil could cause MDS issues. Any connection?
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Old 03-15-2012, 07:12 PM
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Re: V8 tranny slip / engine vibration

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Originally Posted by azjeep View Post
I heard using other than 5W20 engine oil could cause MDS issues. Any connection?
Mines been doing it since 6 weeks of ownership and I've been running the oil that came with it.
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Old 03-15-2012, 07:14 PM
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Re: V8 tranny slip / engine vibration

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Originally Posted by sdlimited View Post
Again I have a transmission vibration when I accelerate from a dead stop. Today it happened very badly... almost like the wheels were slipping on gravel until the car got traction.
Mine feels like I'm running over rumble strips sometimes when it's not shuddering and vibrating.
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Old 03-15-2012, 08:45 PM
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Re: V8 tranny slip / engine vibration

I just made a service appt for the 24th. I'll let you know the outcome. I'm also having my sunroof rattle looked at.
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Old 03-20-2012, 09:51 PM
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Re: V8 tranny slip / engine vibration

The MDS issue is not the issue causing a start from 0 mph, that seems obvious. I think I can say I've experienced both of these issues in my '12, but like my own personal aches and pains in my body, I ignore the small stuff!

I think the MDS issue is the inherent imbalance of turning off 4 cyls. They try to balance it, but it is hard to do and imperfect, however, Chrysler does say they really have no evidence it is hard on the engine after about a billion miles of use, so ignore it, if you don't want to ignore it, put it in tow/haul or manual shift to 5 or 6 to deactivate it and you're done...

The other issue I am thinking is the transfer case slipping going to the front wheels and not giving a smooth start. I find mine to be variable and frankly, I ignore it and consider it within spec, but if it's bad, I'd have them look at this. Of course it could be in the computer control of the hardware so maybe there is nothing a mechanic can see or measure... I agree with above suggestions, shift to manual shift, or tow/haul or, too, try turning off the hill brake assist. Mine was off on day 1 when I quickly realized it was working too hard and interfering with startup even on level ground.

I'm not saying ignore problems, but if the car is under warranty and something is really wrong, it will probably break under warranty if the dealer won't fix it now, so I just drive it.
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Old 03-21-2012, 07:41 AM
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Re: V8 tranny slip / engine vibration

Is the slip from start like hitting a wet spot and then grab? I have that on my '12
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Old 03-21-2012, 08:23 AM
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Re: V8 tranny slip / engine vibration

I spoke to the tech at my dealership about the "slip" and he said it is when the 4wd engages that you get the slip feeling and it is normal. He had disengaged the awd on a customer vehicle and it went away, in my opinion it is an issue that should have been fixed in development and is unacceptable in a 40k+ SUV.
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Old 03-24-2012, 05:00 PM
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Re: V8 tranny slip / engine vibration

I have a 2012 Overland V8 and have both of these issues since it was new. Now have about 2500 miles and the shudder has actually gotten better or I have learned to drive it to minimize the issue. I also notice the slip once in a while. If anything I notice this more now but only once in a while and its minor.
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Old 03-31-2012, 06:18 AM
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Re: V8 tranny slip / engine vibration

If this is a software problem why it taken so long to fix? The V8 Hemi i think has the same 5 speed tranny as the V6 only with software upgrade to make it a 6 speed. So if they are looking for a software update this should be number 1 priority . Hope they resolve this issue.

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Old 03-31-2012, 08:28 AM
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Re: V8 tranny slip / engine vibration

The V8 transmission is Chrysler, the V6 is Mercedes. The so called 5-6 speed software mod was made between 2011 and 2012 V8s.
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