I wonder if this TSB will apply to RWD?

 

Read the TSB and it's not what I thought it was. Hope you get it fixed soon!

 

There are 2 different TSB

SUBJECT:

Flash: Drivetrain Control Module (DCTM) - Transfer Case Operational Enhancements

OVERVIEW:

This bulletin involves flashing the Drivetrain Control Module (DCTM)

MODELS:

2011 WD Durango
2011 WK Grand Cherokee

NOTE: This bulletin applies to vehicles equipped with the QUADRA-TRAC II 4WD
System or Two Speed On Demand Transfer Case (Sales Code DKA) and the
215MM Rear Axle (Sales Code DPP) with the 3.06 Gear Ratio (Sales Code
DMP) or 225MM Rear Axle (Sales Code DPR) with the 3.47 Gear Ratio (Sales
Code DMG) built before May 2, 2011 (MDH 0502XX).

SYMPTOM/CONDITION:

Owners may indicate that they have experienced one or more of the following symptoms:
1. Moaning or groaning noise while coasting and/or during a very light acceleration
around 5 to 8 mph (8 to 13 kph).
2. The SERV 4WD message appears and the vehicle shifts from 4WD to 2WD.
3. Binding of the front driveline while turning on steep grades at speeds around 3 to 5
mph (5 to 8 kph).
4. Surge/Shudder at speeds greater than 50 mph (80 kph).

DIAGNOSIS:

If the customer describes any of the symptoms above, perform the Repair Procedure.

 

Been experiencing a hesitation/bump/slip when accelerating from a stop. It was bugging the crap out of me, so I mentioned it to the delearship in March. They reflashed all the related modules, but there was no new version. Immediately off the lot, I felt the acceleration issue return. After reading this forum post, I mentioned TSB 21-003-13 while dropping my ride off at the dealership for an oil change. I've gotten some static previously when referring to TSBs, but this guy was cool. They hooked it up, saw that my vehicle met the requirements, flashed... I've not experienced the acceleration bump in the last two days. I also notice a different feel when crossing over the 50 MPH threshold. I never really paid much attention to the shudder at 50 MPH, but I do notice it's gone now. Will report back in a week or so, to rule out any placebo possibilities.

To everyone sticking this one out... thanks.

To those with a 2011 Durango having these issues... wow, it's a long time coming.

 

This is the latest release on the issue.

NUMBER: 21-003-13
GROUP: Transmission and
Transfer Case
DATE: May 11, 2013

SUBJECT:
Flash: Drivetrain Control Module (DCTM) - Transfer Case Operational Enhancements
OVERVIEW:
This bulletin involves flashing the Drivetrain Control Module (DCTM)
MODELS:
2011 - 2013 WD Durango
2011 - 2013 WK Grand Cherokee
NOTE: This bulletin applies to vehicles equipped with the QUADRA-TRAC II 4WD
System or Two Speed On Demand Transfer Case (Sales Code DKA) and the
following:
• 230MM Rear Axle (Sales Code DR1) and Electronic Limited Slip
Differential (Sales Code DSF)
• 230MM Rear Axle (Sales Code DR1) without Electronic Limited Slip
Differential built after May 1, 2011 (MDH 0501XX).
• 195MM Rear Axle (Sales Code DRH) (all 3.6L engine equipped (Sales
Code ERB) built after May 1, 2011 (MDH 0501XX).
SYMPTOM/CONDITION:
Owners may indicate that they have experienced one or more of the following symptoms:
1. A driveline bump is felt during acceleration at approximately 10 mph (16 kph).
2. The SERV 4WD message appears and the vehicle shifts from 4WD to 2WD.
3. Binding of the front driveline while turning on steep grades at speeds around 3 - 5 mph
(5 - 8 kph).
DIAGNOSIS:
If the customer describes any of the symptoms above, perform the Repair Procedure.

 

One week end, things are definitely smoother. Still notice a small bump when accelerating from a stop on an incline, but overall things run a little smoother. Will post again in another week or so.

 

Afternoon everyone! When bringing in my car this morning for service i referenced both these TSB's. I have a 2011 Hemi Durango. I was informed that the DCTM was flashed with the updates.

I thought of something though after the fact. Each of the TSB's refer to the "Two Speed on Demand Transfer Case" and specific Rear Axles. However, the rear axles in each of the (2) TSB's are different. They range from 215MM and 225MM (21-004-13) and 230MM (21-003-13). In an effort to obtain the latest flashes while under warranty for issues i was experiencing, I referenced both of these TSB's.

Is it possible that the Tech's computer would allow the DCTM to be programmed if one of these TSB's didn't apply for whatever reason based on these various rear axles? Are there any checks performed before software is loaded as i am not even sure which Rear Axle I personally have? Just don't want to cause issues when i am trying to do the opposite in having something corrected for incompatibility. Thanks!!

 

I don't think it would allow him to use the one that did not apply.
No worries are the symptoms better...Thats all that counts
STEVE

 

The sales codes for your vehicle are read by the computer to determine which download would be the right one for your vehicle.

 

Thanks so much FSTDANGO03 and DodgeCares, very much appreciate your responses!
After driving around the last few days since the updates and along familiar routes where i used to experience the issues, I definitely notice improvements in smoothness!! Very glad to finally have this issue resolved!