Mopard

Apparently the 06 48RE has had many internal upgrades since 05 and that is why I ask 06 owners specifically but feel free...
When shifting from Reverse to Drive my truck really Bangs into gear. It's not real bad 1st thing in the morning but gets worse the warmer the truck gets. I've actually chirped the tires on dry hot pavement, that's how hard it lurches into Drive from Reverse. I've had it to 2 dealers and they agree it sucks but don't know what to do. They would help if they knew what would cause this, which part(s) to replace. I have to make this shift continuously all day while plowing and it is dreadful, every shift just pi$$ing me off more. lol, frustrating. It's done this from day 1 and with only 2500 miles I can already feel the drive-line getting sloppier/clunkier because of this. It's like dumping it into Drive with the engine revving... we know something is gonna break if we keep that up.
I'm not impressed at all with this tranny so far, it is THE worst shifting tranny I've ever had or seen. I could go on in detail why/how it sucks but for now if I could just fix this problem with my brand new 60K truck I'd be happier.

All u '06 owners, does your 48RE shift like this after it's warmed up?

Any idea which part(s) are supposed to control this? which part(s) need to be replaced?
thanks

no_6_oh_no

Where did that info come from? Best info I have so far is programming changes only to handle the e-brake.

As far as you symptoms go, that isn't right no matter what year it is. What are you rpm's reading when you shift?

Nitro71455

Mine doesn't do that... However, when I first start the truck if I put it in grear with no warm up, it's like my trans has no line presure, the truck just sits there for about 5 seconds and then will start to move (this is without pushing the gas. Once it's moved, it won't do it agian for the rest of the day (only does this when it's cold).

Other than that (and I'm not sure this is a problem) I've really liked the auto thus far... I was abit leary about leaving the NV5600 behind for the auto, but so far so good....

--Rich

Mopard

no_6_oh_no, rpms are at 750, right where they are supposed to be. Even if I let the truck idle for a while in Neutral between the Reverse-Drive shift it still does it, same behavior no matter. Far as the internal upgrades I read they revised the hydraulic pump (15% greater flow capacity), planetary carriers upgraded to 6 pinion design, added capacity on all clutches and bands, now TC lock-up in 2nd, 3rd & 4 gear and a few other things I can't recall right now. I think I read this at the Dodge dealer.
Nitro71455, mine hasn't done that yet but I always run my truck for about 1 min. (2 or 3 if real cold) before I move it. Hey, maybe that's why mine doesn't lurch into gear first thing in the morning eh, less line pressure when cold? hmm. thanks

barracuda

I've only had my 06' for a little while and haven't noticed anything from reverse to drive like you are describing. As for the trans itself, I am pretty impressed with it so far, the TOW/HAUL mode is wonderful w/ the downshifting. This trans behaves nicer than my moddod auto in my 98.5 ever did, If my truck did what you are describing and the dealer couldn't help I would definitely get an opinion from a good independent Trans guy and challenge the dealer. These trucks aren't cheap and you deserve to have it correct.

v8440

To the person with the truck that acts like it's in neutral for a few seconds, that's the torque converter filling. It drains overnight, so when you put it in gear immediately in the morning, the pump hasn't filled it up yet, which means you have no fluid coupling for a few seconds. What you're doing will not hurt anything. If it bothers you, put the transmission in neutral for a few seconds-the converter will fill in neutral. I THINK the transmissions still won't fill it in park, but I'm not 100% sure about that.

Dodgezilla

Sounds like too high of line pressure. It's a simple adjustment for the trans guy at the dealership. I would keep taking it back to the dealer until they make it right.
My trans shifts into 3rd too quick. It didn't do it when it was new but it still does it now even after getting a full DTT rebuild. I took it to the dealer when it first started doing it and of course they told me the trans was working properly. I wish I had been more demanding because now I have to live with it shifting too soon all the time.. I should have taken my own advise and kept taking it to the dealer until it was repaired or replaced.

It's only going to get worse........

JCROMAN

That is the general info on the 48re changes. they are not changes from 05-06 there were NO internal changes to 06 just programing.

JCROMAN

the reason your truck shifts into 3rd to quickly is the valvebody is not setup right. I had the same issues with the dunrite kit as well as the suncoast valvebody. i ma now running a HTS valvebody and all is well now. call Dusty at HTS if you would like it to shift at the correct times. i remember when mine used to shift from 2-3 real quick it was very annoying...........

no_6_oh_no

Hmmmm...my understanding was ALL 48RE's had the hard parts and internal changes and the 05's had the better TC and lockup strategies. At least mine has those lockup features.

The trans still doesnot circulate fluid in park as far as I know. That can easily be fixed with a couple of pieces so it will. I think you have a problem in the VB. Sounds like too much pressure for the revs it is seeing. Takeit back and make the dealer swap the VB or adjust it until is is right.

Donald A

My 06 shifts like a dream. Keep on the dealer until they get it right.
Donald A

Dodgezilla

Jcroman, I'm on my third valvebody right now. I'm just going to have to live with it I think. The guy who built it is going to try a different spring for the third gear shift and we'll see if that helps. It's much better than when I had the stock VB but still not perfect. Full throttle shifts are just fine though...

06er

I dont know alot about trannies but this thing is the worest shiffting thing i have ever drove. This is my third diesel my first ctd and maybe my last. When shifting from 3rd to 4th it has about a 2to 3 second delay then bangs in to fourth, if i would accelerate in that delay i think it might just be the end of that tranny, and i only have 9,000 on the truck

06Cummins

i havent noticed the problems on my 06 (1200 miles)..Jason

shep1

[QUOTE=no_6_oh_no]
"Where did that info come from? Best info I have so far is programming changes only to handle the e-brake."

Reply:

Check out the new Dodge Ram heavy duty brochure, There is Info as to the changes made on the 48re auto not just programing but some internals also.