2013 express transmission issue??

[KYEXPRESS]

Hey everyone I have a 2013 Ram Express and I think I have a transmission or torque converter issue.

When i'm cruising around any where from 25 mph to 45 mph when the truck goes into ECO mode, I get a crazy sound and a vibration I can feel in the whole truck. It kinda reminds of how a drive shaft feels when its out of balance, then in order to get the truck to shift out of ECO mode I have to give it considerable amount of pedal or put it in tow mode, or manually shift it to 5 or so. The dodge dealer seems to think its normal, but no other Ram I have rode or drove has the same issue..any thoughts guys...its sooo annoying I'm about ready to sell the damn thing.

 

[jcat]

That's the MDS. Truck is shutting down 4cyl to save fuel.

 

[Pitch1]

I have never felt that in my truck. Did a tech take a ride with you so he could experience it first hand? If not they are just blowing you off! Take it to another dealer and have their rep ride with you.

 

[BLKMAGIC]

That's the MDS. Truck is shutting down 4cyl to save fuel.

I dunno man, my truck doesn't do that when it goes into MDS...I dont notice a thing but the Eco light...

 

[DavidRam]

Mine didn't do that when it would go into or out of MDS. It did bog down, and feel and sound ******, though. IIRC, maybe mine did vibrate a just a little too.
Maybe you have an MDS with a very strong will to stay active?

 

[jlb]

Did you search back a bit deeper in the forum? I seem to recall this problem coming up a couple years ago, a bit before your guys time.

I will have to look and see if I can find it.

 

[RobHinton]

I was actually browsing through this section for the exact same thing. I have a 2013 Express RC and when you are cruising about 25-40ish and you give slight throttle say 10% it has a vibration and a sputtering type feeling ... anyone else have experience or found a solution?

 

[jcat]

@robhinton that's the mds disengaging.

 

[BlkExpress]

no issue @ any mph

 

[RobHinton]

any way to "fix" this? it is very annoying

 

[Andy578]

sounds like MDS but mine isn't like that at all. i don't usually even notice when it comes on/off except the the lack of power. it also disengages pretty quick and easily when i hit the gas

 

[cableguy_hd]

if it is the mds , buy a tuner and turn it off. the dealer wont do it

 

[DavidRam]

Try driving the truck in tow/haul mod and see if it still does that.

 

[Statcher1]

Mine does that when the MDS engages.


Sent from the Rocket in my Pocket

 

[jcat]

Try driving the truck in tow/haul mod and see if it still does that.

I was in tow haul a few times this weekend with over 1300lb in the bed and mds still came on

 

[CarpenterBrook]

Digging up an old thread. I have a 2014 RC black express w/ 5.7. About 1100mi on odo and have been noticing this vibration since day three of ownership. It's definitely not MDS. To iterate the problem, the vibration is similar to driving a manual, ******* the motor in 3rd from a stop, as if the gear is too high for motor. This only occurs when coasting with no accelerator input, then applying light input(as previously noted): no problem under heavy accel. Happens on highway or in town. My guess is the transmission is in too high of a gear? Anyone find resolution on this? Pretty annoying.

 

[NYCruiser]

Put the transmission in manual mode "6" and the MDS won't engage. If the problem goes away, it is the MDS you are feeling.

Note: Nothing wrong with driving around in "6" if you don't want the MDS to activate. Also, tow/haul mode will deactivate it too, but it will change your shift points also. Manual mode won't change your shift points.

 

[CarpenterBrook]

Tried tow/haul previously and still experienced the drone/vibration. Will attempt manual mode tomorrow. If it's the MDS, is there a fix? Read a tsb is available for 2010-2013. Thanks.

 

[reek]

just fyi, atleast for the 2014, the tow haul mode does not turn of MDS. Only the "manual" shifting mode does.