66RFE Slippage

[wolfington17]

I have a 2012 Ram 2500 HD tradesman with a Hemi, trans slipped the other day and kicked into neutral in 4th gear. I can still drive it in 1-3 and tried jumping from 3 straight to 5 and it kept driving. I was only going about 35 mph when I switched it. Thought maybe the overdrive clutch plates? But I figured I would have lost 4,5,6 all at once. Fluid is fine and only code is P0735 (Gear 4 incorrect ratio). Before I spend 3k getting the trans rebuilt I wanted to see if anyone else had any ideas

 

[Burla]

Every guy same position, do I change the valve body and solenoid knowing if I rebuild I will get no credit for it or not? What shape is the fluid in, still some shade of pink? Sounds like valve body issue and if never cracked open and a 2500, you may opt for solenoid, metal thread upgrade synthetic filters oem sump filter synthetic canister filter. Just get a valve body or buy a 400 dollar plate to ensure it will never leak. Lots to consider with a plate, you may have to sand flat hyper clean install check balls yada yada, when just buying a nice valve body might be the way to go, you may need a quick learn on it, find out where you can get one. If it were me and fluid wasnt burned or smelled burned, I'd probably get a valve body and solenoid with those upgrades, maybe not plate.

 

[wolfington17]

The fluid is still pink. I’ll try the valve body and solenoid first!

 

[Burla]

Synthetic Filter Options for RFE transmsions....

WIX 57055XP RP 10-2867 M1-110A (synthetic blend) XG7317 EA15K13 amsoil All appear to be replacements for the oem garbage paper filter for all the rfe's, 5 speed and 6 speed, I believe this option will be for any older rams with same thread size of course not the 8 speeds. These paper filters...

www.ramforum.com

 

[wolfington17]

Update valve body was definitely broken. Two bolts came out of the end of the plate and it was bent. (Picture) put everything back together with new solenoid and filter , but when I went to start it my dash says it’s in reverse but the gear shift is correct I can drop it down to what I know is reverse, neutral, and drive. All the way back up and it says reverse? Any ideas?

 

[wolfington17]

It skips over neutral when shifting through gears with the lever

 

[Hemi395]

Check to make sure the shift linkage was mated up correctly with the valve body when you put it back in. Kinda looks like a rooster tail on the top of the valve body. That has to go in the right spot to match up with the gear shifter on the column.

Unfortunately that means you're gonna have to remove the valve body again...

 

[wolfington17]

That would cause the dash to read wrong? It still feels correct when shifting it. When the lever is in position that should be neutral, I can push the truck. Even though dash says it’s in reverse.

 

[wolfington17]

I’m sure you’re right. I just feel really dumb also wish these had a drain plug. Sucks losing 7 or so quarts of ATF all
Over the ground.

 

[tallfetcher]

you can get a hand vacuum pump like a brake bleeder tool and suck the fluid out of the dip stick tube. takes a while but saves a big mess!

 

[wolfington17]

Took it all apart, put it all back together. Same issue. Disconnected battery and unplugged solenoid. Truck fired up. Test drive it through all the gears, ran fine. Parked it, shut it off, went to turn it on. Shifter shows reverse again when it’s in park.