'05 48RE OD Lockout TSB

[10-9jc]

The '05s have a unique (negative) feature.

Only year the transmission can't be locked -out- of OD.



I see in issue 58 (page 96) that there is now a TSB:

"New 48RE feature that allows normal shift schedule with full disable of 4th gear overdrive. " (21-006-07).



Has anyone had this flash done?



What happens to the shift points? - the "normal" shift schedule vs

"tow/haul" mode shift schedule? (Is tow/haul no longer available?)



Exhaust Brake compatible (as in '06) ?



Thanks,

JC

 

[Matt400]

I wouldn't do it, you loose TH mode when you have that TSB done.



Just double tap the TH button to cut OD, keep your foot off the go pedal and OD stays off.

 

[TFucili]

As Matt400 said losing tow/haul shift points and TC lockup benefits has kept me from doing it. There have been a few on the board who had it done. I must admit when I get on a long, winding pull where you are right in that just under 50MPH range and it keeps grabbing OD and lugging the engine and sending the EGT gauge to the moon it makes me think about it. Dang, I wish we could have gotten the '06 programming and have both#@$%! Now, about that factory exhaust brake we were promised... :-{}

 

[10-9jc]

Matt - as you can see from my Q - I was hoping for a
win-win TSB, but looks like no such luck.

[For those fortunate enough NOT to have an '05, what Matt means with the "double tap": - if you are in T/H, tap to go "out", tap again, -
the transmission downshifts when it returns to T/H -
it will then be out of OD until you touch the "go" pedal again].

Of course as TF points out - not any help going UP-hill.

TF - D/C took us to the cleaners with - promises, promises . . . .
~
Thanks for the replies!
JC

 

[Ram3500]

05 48RE Lockout TSB

Folks, BD has a mode that will lock out overdrive, and keep it in (drive) 3nd gear. Make it operate like an 06.



BD part no. 1031350, cost about $225. 00



Ray

 

[TFucili]

Folks, BD has a mode that will lock out overdrive, and keep it in (drive) 3nd gear. Make it operate like an 06.



BD part no. 1031350, cost about $225. 00



Ray

I looked at it, and if it was "plug-n-play" I would have probably tried it. I don't want to carve into the harness at the ECM, especially while I am still under warranty. I know they claim there is not enough memory or some such BS, but it's a crying shame that Dodge couldn't cure this with a flash.

 

[Matt400]

it will then be out of OD until you touch the "go" pedal again.

I wouldn't be surprised if the 05 function helps me to save fuel & brakes. I have learned to like it.

While going down hill off the throttle I tap once to get a down shift to 3rd and locked for some engine braking. If I find I want a little more speed I just tap once for an upshift to OD vs touching the throttle which burns fuel and gives the unexpected shift upshift to OD while in TH.

Of course as TF points out - not any help going UP-hill.

For a shift to 4th to be allowed while using the throttle the engine load must be low with light throttle. I think where some are annoyed are in certain roller coaster type areas.

 

[donnier]

I usually turn the "Tow/Haul" off and let it do its thing.

Dont know if Im damaging anything but it has worked for me so far.

 

[rbeyer]

I have the BD lockout. It works simply and reliably. I use it the most in the foothills to eliminate the constant shifting. It doesn't seem to matter towing uphill. But, downhill, specifically on California's Grapevine, I really appreciate being locked in 3rd with no hassles and worries.

 

[Bob4x4]

With the od flash,it can be enabled and disabled using the drb,so if you don't like it you can still go back and have the t/haul mode.



Bob

 

[Ram3500]

05 48RE Lock out

It is my understanding that when the flash is performed, one can not go back and have the T/h re-instated.

 

[redfuelrules]

For a shift to 4th to be allowed while using the throttle the engine load must be low with light throttle. I think where some are annoyed are in certain roller coaster type areas.

That wasn't the case on my truck. Towing 15k (plus my 9500lbs truck) up a steep hill, the truck kept shifting into OD, losing speed & rpms, then if I let up on the throttle, speed dropped a bit, then went in third, then upshifted, losing speed & rpms, and on and on.



I have the BD lockout module & like that it locks out OD, but it isn't always intuitive to use. Sometimes I double click as usual and the OD/off light flicks on then off, instead of engaging.



Thats my . 02 cents...



Ben

 

[10-9jc]

"Bumped" due to info in Issue 64 May/June/July '09- of TDR magazine, which indicates
TSB #21-006-07 (which generated my original question, here in '07) will cause the '05 T/H
feature to operate as the '06 does.
(see page 68, "Idle Clatter" - bottom-right - "Tow/Haul Overdrive Lockout"

IMO - have my doubts - but let's see what info comes up here.

Note: Others have spotted the same thing in issue 64 - same question/s on another thread.

JC

 

[Bob4x4]

It is my understanding that when the flash is performed, one can not go back and have the T/h re-instated.

Not so... ... ... . With the drb the feature can be turned off or on. Now when a down loader is used the feature is automatically turned off and must be reenabled by the drb

 

[Matt400]

"Bumped" due to info in Issue 64 May/June/July '09- of TDR magazine, which indicates

TSB #21-006-07 (which generated my original question, here in '07) will cause the '05 T/H

feature to operate as the '06 does.

(see page 68, "Idle Clatter" - bottom-right - "Tow/Haul Overdrive Lockout"



IMO - have my doubts - but let's see what info comes up here.

Issue 68 is mis leading.

It does not operate like the 06 after the flash. It operates like the 03.

You won't be able to select Tow/Haul mode, instead it converts your Tow/Haul button into an O/D off button.



If you have an 05 with an EB the flash is nice cuz you can keep it in 3rd BUT it causes another problem of not staying locked in 3rd when needed so a nice fix I found for that is to operate both the EB and the trans with one of these

#ad




IMO if you are not using an EB then I would not have the flash done.

Another work around that makes it work like the 06 (which I haven't personally tried) is using one of these:

#ad

 

[10-9jc]

Matt400 -
Good info!
I don't have an EB - and probably won't due to the waranty issues - and can live without it.
But - your info should help those that have -or- want an EB.

Thank you.

~

BTW it's currently in Issue 64, *PAGE* 68 - but Yes, it *IS* misleading!!

Jim Anderson (the author of "Idle Clatter"): Are you paying attention?
You need to either print a retraction or clarify your statement/s.

~

JC

 

[Matt400]

Glad to share when I can. Funny though cuz I just read my previous posts in this thread and should note that back then I was towing 6K with no EB so the 05's T/H was fine IMO.



Now days I tow 10K with an EB so the flash along with the BD EB/Trans controller is what I found to work for me.

I was going to wait out the warranty period but figured safety came first with the mountain tows I do.

 

[10-9jc]

FYI -
Webmaster/admin indicated he will pass this along to magazine folks.
(Issue #64 = TSB changes '05 T/H button to same functions as '06)

~
JC