Checking Allison Fluid level

[RonNBama]

Cannot seem to find this info. I want to use the dip-stick to check the level. Is it done with the engine running or not? Warm or cold? In drive or neutral?

[wagonmaster2]

Check the fluid level with the engine running, tranny in Neutral. Can be done cold or hot, there should be two different positions on the dip stick for doing it either way. I always check it cold just to be sure there is sufficient fluid before driving, then after warming up to highway temperatures I check it again with the touch pad on the dash. Tranny will have to be around 145-150 degrees to use the touch pad if you have one, which will be the most accurate.

Wagonmaster2

[RonNBama]

Thanks wagonmaster. I have seldom seen the temperature reach the required level required to use the keypad, especially during the colder months. Happened to notice "puddles" under the tranny yesterday and need to find out the leak source location. First time I have seen a sign of a leak so hopefully it hasn't lowered the level to the point of mechanical danger.

[RonNBama]

"Mountain out of a molehill"
"The sky is falling"
"Worst case scenario"

Yep, that's me. I am a devoted follower of that great deity, Murphy, whose one rule: "Anything that can go wrong, will go wrong", is permanently stamped in my brain. The horrible leak of transmission fluid I detected a few days ago as evidenced by liquid dripping of a dozen different bolts securing the tranny pan has miraculously disappeared! Turns out there was condensation from 25-degree temperature swings causing my fears to overrun my reality.

Once again, the indestructible Allison is ready to push my coach on down the road.

[JimM68]

Yea!!

[Wizard]

What color was the fluid?

If you saw transmission fluid leaking I would check into it more and maybe torque the pan bolts. If it was clear and water it will dry up and nothing to worry about.

[Mr_D]

Quote:

Originally Posted by RonNBama Thanks wagonmaster. I have seldom seen the temperature reach the required level required to use the keypad, especially during the colder months.

That's true with ours too since I put TranSynd in. If I do a hill and stop immediately, then start the countdown I MIGHT make it before it cools off too much.

[Robi.1014]

My tranny temp (dash reading) never gets of the left peg of the gauge....thus I was unable to use the Allison control pad to take a fluid level reading. The shifter pad always said "temp too low".

One day, I was working other issues and left the tranny in drive with the engine idling. Within about 10 minutes, the dash gauge came off of the "left peg" and I was finally able to get a fluid "Level OK" reading from the shifter pad.