68rfe problem maybe valve body

[Boohans]

So I have a 2008 cummins with the 68rfe. I was driving home on county roads after work one day and truck went from fine to shifting weird in an instant. Tried making it to the top of a hill but it was stuck in limp mode and over reving I'm assuming caused transmission fluid to blow out of dipstick tube land on the turbo and started a fire! A cold busch light put the fire out with no damage but I towed the truck home took the pan off and the actuator plate was missing 2 screws, which were stuck to the magnet and plate itself bent. Called dodge they make a kit for this problem. I replaced the 2 pistons towards the front of the transmission and the actuator plate, filters, new oil. Now I have to leave gear selector in 3 because it hesitates to go into 4th and then sticks in limp mode. There was nothing in the pan as far as debris and oil looked clean and smells fine. I dont know what to do. I think its something in the valve body but curios on opinions. It also hesitates to go into 1st and reverse from a stop.. i have to rev a little to get it going.. Transmission has roughly 35000 on a dodge factory remanufactured transmission. Help please!

 

[Boohans]

So I have a 2008 cummins with the 68rfe. I was driving home on county roads after work one day and truck went from fine to shifting weird in an instant. Tried making it to the top of a hill but it was stuck in limp mode and over reving I'm assuming caused transmission fluid to blow out of dipstick tube land on the turbo and started a fire! A cold busch light put the fire out with no damage but I towed the truck home took the pan off and the actuator plate was missing 2 screws, which were stuck to the magnet and plate itself bent. Called dodge they make a kit for this problem. I replaced the 2 pistons towards the front of the transmission and the actuator plate, filters, new oil. Now I have to leave gear selector in 3 because it hesitates to go into 4th and then sticks in limp mode. There was nothing in the pan as far as debris and oil looked clean and smells fine. I dont know what to do. I think its something in the valve body but curios on opinions. Transmission has roughly 35000 on a dodge factory remanufactured transmission. Help please!

Its throwing a bunch of codes also if they would help I can post them.

 

[Ozymandias]

Please post them. Then delete the Codes and see how it reacts. Also you probably need to do a relearn cycle at the transmission before you use it.

 

[Jeffpeeps]

Its throwing a bunch of codes also if they would help I can post them.

Which codes was it throwing because the same exact thing happened to mine. I rebuilt transmission everything back together now throwing a p0750 code solenoid malfunction I replaced solenoid and still same thing. Any input on how you fixed yours

 

[JR]

I'm not sure if you know this since you didn't mention it so don't take offense, but you do know your accumulator plate is trashed?

 

[Jeffpeeps]

I'm not sure if you know this since you didn't mention it so don't take offense, but you do know your accumulator plate is trashed?

Yes already took care of that part

 

[JR]

OK. The only other thing I can add is the slightest damage to the bores or pistons will cause you problems. If your codes popped up at the same time the plate let loose, you may have to go back in for a closer looksie.

 

[Jeffpeeps]

OK. The only other thing I can add is the slightest damage to the bores or pistons will cause you problems. If your codes popped up at the same time the plate let loose, you may have to go back in for a closer looksie.

I rebuilt the whole transmission and replaced valve body just getting the same code of p0750 which wasn’t there went the transmission took a crap

 

[Ozymandias]

You NEED to do the relearn cycle, otherwise you'll ruin the transmission within just a couple hundred miles.

A lose plate lets the transmission learn wrong values, for as long till it can't correct them internally and finally fails. Now these wrong values need to be erased from the computer, a reset is a must in that situation, it is not enough to just fix the hardware.

 

[Jeffpeeps]

You NEED to do the relearn cycle, otherwise you'll ruin the transmission within just a couple hundred miles.

A lose plate lets the transmission learn wrong values, for as long till it can't correct them internally and finally fails. Now these wrong values need to be erased from the computer, a reset is a must in that situation, it is not enough to just fix the hardware.

The code immediately popped up as soon as I hooked everything back up so it hasn’t left the driveway yet

 

[Timd32]

The code immediately popped up as soon as I hooked everything back up so it hasn’t left the driveway yet

Info on truck? I can look, can't say I know much about these ones, but if there's a procedure for that will dig a little or let you know it's a bust.

Some years have two vin options for the 6.7, it's kinda like a parts store, go in for washer fluid and they ask if it's a manual or automatic transfer case? At times it does not relate to the repair.