Allison Transmisson Model MD3000MH
The 3000 Transmission went into Limp Mode after being in traffic for several hours. Had the Trans checked by Inland Power Group, Carol Stream,IL, (They were originally Detroit Allison before coming u...
Forum Discussion
Allison does not recommend ever "flushing" their transmissions. Flushing can do more harm than good.
Did you take a look at the fluid? Transynd will turn dark orange with age, but that doesn't mean it's bad. Did the fluid smell burnt?
What did they actually do to diagnose your problem?
Did they drop the pan and look for burnt clutches, debris, etc.? If all they did was read the codes, I think I'd clear the codes, replace the filters/fluid and drive some more to see what happens.
Low PSI can be caused by a clogged filter. A new one might solve your problem. If your Allison has never been serviced in 91000 miles, I wouldn't be surprised if that's your problem.
To answer your question, if I had full faith in the rebuilder, I'd go for #1. If not, #2.
Did you take a look at the fluid? Transynd will turn dark orange with age, but that doesn't mean it's bad. Did the fluid smell burnt?
What did they actually do to diagnose your problem?
Did they drop the pan and look for burnt clutches, debris, etc.? If all they did was read the codes, I think I'd clear the codes, replace the filters/fluid and drive some more to see what happens.
Low PSI can be caused by a clogged filter. A new one might solve your problem. If your Allison has never been serviced in 91000 miles, I wouldn't be surprised if that's your problem.
To answer your question, if I had full faith in the rebuilder, I'd go for #1. If not, #2.
