Medium and Heavy Trucks
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Hi Bill, My name is***** will be glad to try to help. What is the complete make and model information from the transmission ID tag so I can be sure to get you the correct information?
I see you seem interested in a phone call as well. They are offered as a premium service offer separately from this question. If you would like to add a call click on the premium service options and send over the request and I will gladly accept on my next available login. I help on here in between jobs as time allows.
If it is the Meritor Transmission with the two shift solenoids at the rear of the transmission the common problem is the shift knob and the wiring from the shift knob. Check for damaged wiring and connector pins. Let me know. Once I know the transmission model info I can likely help with diagrams and troubleshooting information.