allison transmission

No answer to your question but I have the same type of situation. Under one of the bedroom access points, there should be another dipstick and tube on the transmission. That is the one I have used in the past when I changed my filters and fluid. Also, when warm and level, you should be able to check the fluid level from the keypad. If you press on the up and down arrow shift keys at the same time, it will go into the fluid level sequence. You can go to the Allison site and download several manuals that are helpful to your situation. Ours doesn't have a dipstick there either and I even ran a camera down into the tube to see if it had come off the handle. Hope this may help. Happy Trails Bert

A dip stick for the Allison transmission is only to check to see if there is any fluid in the transmission before you start the engine. The accurate way to check oiil Level is to hold both the up and down arrows on the transmission pad in the coach. Once it starts flashing or blinking rerlease the pressure on the buttons and it will go through diagnoses of some kind or a count down (dont remember what or why) but when it stops it will show oil level by displaying either low and number of quarts, or high by number overfilled or I think O if filled to correct level. Suggest you double check for the symbols and meaning of each as the above is from my memory from several years ago. This info was from allison and should also be in a publication or on line.

following procedure will allow you to check your transmission fluid level from inside the vehicle, and it is also more accurate than checking via the dipstick.

To enter the transmission oil level display mode, press the UP and DOWN arrow buttons simultaneously on the mode selector. A two-minute countdown begins when the following conditions are met:

Engine is at idle
Transmission sump oil is at operating temperature
Transmission output shaft has stopped
Transmission is in neutral
Oil level sensor is functioning properly
The display should show *8 and then count down to 0. Note that it will take two minutes to complete this countdown. During the countdown, the display flashes and a count (8,7,6,5,4,3,2,1) occurs reducing by one digit every 15 seconds.

NOTE: Failure to meet any of the above conditions will stop the two minute countdown. The shift selector will then display one of the following Oil Level Codes to show the reason for the countdown interruption. The countdown will resume where it stopped once all conditions have been met. Shift selectors with single digit display will display the codes one digit at a time. Shift selectors with two digit displays will display the codes two digits at a time.



OIL LEVEL CODE CODE DESCRIPTION
oL 0X Setting time too short
oL 50 Engine RPM too low
oL 59 Engine RPM too high
oL 65 Neutral not selected
oL 70 Sump fluid temperature too low
oL 79 Sump fluid temperature too high
oL 89 Output shaft rotation detected
oL 95 Oil level sensor failed
After the two minute countdown, the shift selector displays the oil level data as in the following examples:

OIL LEVEL READINGS MEANING OF READINGS
o, L, o, K Fluid level is correct
o, L, L, o, 1 or OL, LO, 01 Fluid level is 1 quart low
o, L, H, 1 or OL, HI, 01 Fluid level is 1 quart high
To exit the oil level display mode, press the NEUTRAL button or simultaneously press the UP and DOWN arrows twice.

Your chassis maker could tell you if you should have a dip stick and also likely has a PN for it. Call them with your VIN.

Wonder if the dip stick is missing or has just come loose from the cap and slid down in the tube?

Can you use forceps or needle nose pliers to check for the dip stick?

OR (at least on the Allison 3000-- don't know which Allison 6 speed you have) worse case is you would buy the O ring/gasket where the dip stick tube goes into the transmission-- lift it enough to shove the dip stick up the tube. Fluid level is lower with the engine running.

Mike Brez

Thank you for the most informative and helpful post I’ve read in a long while.

It is copied and pasted in my Notes pad.

That had to take some time to type.

thanks for all of the help. I'll look for a second dip stick and try the shift selector to get a reading.

holiday rambling wrote:
thanks for all of the help. I'll look for a second dip stick and try the shift selector to get a reading.

If it's actually there, broken off or just disconnected from the cap, and you can't see it in the first couple of inches of the tube, you can also try an "Inspection camera". You know, they have about a 3' long snake-like lens that you can bend all over the place. Some also call it a "Bore scope". You can get one at Costco, Home Depot, Lowes and more places. I have two. One is from Costco and works ok. But, the other one I got off Amazon and is programmed to my phone. I just hook it up to its own components and it Bluetooth's a signal to my phone. It works maybe even better than my Costco unit. Just a suggestion.
Scott

Here is a link to a post that might help you. Charlie E posted it on one of my posts

Here is the post from this forum from the guy who helped invent Transynd.
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/24963117.cfm

map40 wrote:
Here is a link to a post that might help you. Charlie E posted it on one of my posts

Here is the post from this forum from the guy who helped invent Transynd.
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/24963117.cfm

That thread has been inactive for 8 years.
Try here

You could try using this to see if it's in the tube and possibly pull it out.


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