2005 FL columbia D60 Auto/manual transmission

You don't hear any air loss from the TCU/XY shifters?

 

do not change TCU now

tranny swithces to manual mode if no speed info on J1939 (for example any ABS problems)

there is no XY shifter like on Eaton. There are air cylinders that move rails, there are splitter and range cylinders there... really tranny is totally different you got use to see.

TCU board is the same like on early I-shift. But shifting mechanics are totally different

 

as in any manual tranny. Gears inside are like 16 st ore 12 st manual, but box casting differs

 

I have been told that when you hear a airloss from where the TCU is ,you only have a few days left untill the gearbox stops working.
It is because there is a O-ring gone on one off the "airpiston" that does the actual shifting.

Pablo,what is you feeling about replacing those O-rings before they break?

 

Use Manuel shift mode while crossing rail road tracks under a Haz-Mat load.

Auto shifts- are influenced by the air system. Drain your air tanks each day or install an auto air drain. All air compressors produce oil, even with air dryers, (replace air dryer cartridge) however, oil can still mist thru the air system. Check the transmission's air filter regulator, inside is a thimble size metal filter, clean this out. Before, the range valve O rings and some other O rings & seals become contaminated by misting oil (long term misting...small droplets add up over time).

Transmission sensors can decrease in function that affects other systems. i.e. input speed shaft sensor can go out, and your truck will have trouble starting. sample: you turn your key on, and, no start, turn the key off again and key on & truck starts up. (doesn't start). Sensors are cheap, $25.00. the diagnosing-im sure you'll discover this area.

 

Anybody ever swap these automatic transmissions out? I've got the same one in an 04.
How's it going with that chimbotano? I'm already wanting to swap it out