ichudov
Member
- 399
- 15
- 18
- Location
- Chicagoland, IL
I have an M923A2 truck that I am working on. (it sat around for a few years)
Right now, I have it on blocks so that wheels can spin freely.
It has the following problem (among some unrelated issues):
1) I can put it in gear, and accelerate. (remember, it is on blocks so the truck does not move, the wheels spin in the air)
2) However, when I hit the brakes to bring the wheels to a complete stop, however gradually, eventually, the engine DIES as the wheels stop turning. It is as if the torque converter clutch is not disengaging properly.
What could it be?
Notes:
A) in the past, it also had a problem of "dying when put in gear". (as opposed to what I described above, dying when brakes are hit). I messed a bit with the solenoid on the side of the transmission and supplied it with 24v directly. Trying this a couple of times got something unstuck and resolved the problem of dying when put in gear. As of now, this solenoid is plugged as it is supposed to. The solenoid was tested and was found to function properly.
B) The protection box on this truck is bad. I bought a replacement, but it had the effect of turning off when running, which could possibly damage some electronics. Does the transmission have any sort of an ECM that could have possibly fried?
Also, is there some way to disable the torque converter clutch? If yes, will the truck still be driveable, perhaps with reduced fuel economy? Would transmission fuel overheat?
Thanks!
Right now, I have it on blocks so that wheels can spin freely.
It has the following problem (among some unrelated issues):
1) I can put it in gear, and accelerate. (remember, it is on blocks so the truck does not move, the wheels spin in the air)
2) However, when I hit the brakes to bring the wheels to a complete stop, however gradually, eventually, the engine DIES as the wheels stop turning. It is as if the torque converter clutch is not disengaging properly.
What could it be?
Notes:
A) in the past, it also had a problem of "dying when put in gear". (as opposed to what I described above, dying when brakes are hit). I messed a bit with the solenoid on the side of the transmission and supplied it with 24v directly. Trying this a couple of times got something unstuck and resolved the problem of dying when put in gear. As of now, this solenoid is plugged as it is supposed to. The solenoid was tested and was found to function properly.
B) The protection box on this truck is bad. I bought a replacement, but it had the effect of turning off when running, which could possibly damage some electronics. Does the transmission have any sort of an ECM that could have possibly fried?
Also, is there some way to disable the torque converter clutch? If yes, will the truck still be driveable, perhaps with reduced fuel economy? Would transmission fuel overheat?
Thanks!