How does the Allison automatic shift selector work?
The electronic control system of your Allison Automatic is programmed to inform the operator of a problem with the transmission system and automatically alert the operator. When the Electronic Control Unit (ECU) detects a problem condition, the ECU: – Restricts shifting – Illuminates the CHECk TRANS* light on the instrument panel
Why is my mt653 not shifting 5th gear?
Anyway you are not getting 5th gear and IIRC there is a set of springs on the spool valve that makes it go to 5th that is adjustable with a little t-pin thingy. But I don’t have a manual so I can’t really help much more.
Is there pressure test for Allison Transmission mt653?
ALL NEW MEMBERS PLEASE READ THIS FIRST!!! Discussion in ‘ Trucks ‘ started by marka683, Sep 10, 2016 . Looking for a pressure test procedure along with a hydraulic schematic.
Is there a problem with my Allison Transmission?
This truck belongs to my neighbor , the problem started out of the blue, no mods, no working on it in any way, it is an old Ford truck maybe 1979. 2-3 shift is very late and may not happen at all until i let off the throttle. 3-4 shift seems normal, 4-5 shift never happens no matter how long I wind it out.
Why is my Allison MD3060 blank selector shifter not working?
The constant movement of the engine, caused pulling of the harness between the fixed and moveable points causing the sharp edges to cut into the insulation and subsiquently wire #N92A cutting off the power to terminals 1 and 16 of the ECU. Once this was repaired and installed the truck could then start and drive again.
What does the Allison Transmission Control package do?
The Allison electronic controls package oversees the operation of the transmission, controlling transmission upshifts and downshifts, and providing important information on the operation of your drive system. Through readouts on your shift selector, you will be able to monitor transmission oil levels and read diagnostic codes.
What’s the best way to use the shift selector?
1. Park the vehicle on a level surface, shift to N(Neutral) and apply the parking brake. 2. Using a pushbutton shift selector,simultaneously press the UPand DOWNarrow buttons. Using a lever shift selector, press the DISPLAy MODE/DIAgNOSTIC button one time. 3.
https://www.youtube.com/watch?v=NNa7FO_9VXk