jadcadfarm
New Member
I'm new to motorhome world and just bought a used '96 300hp 8.3cummins, MD3060R, with 85000 miles.
1. There is a slight delay (~1-2 sec) on upshift from 3 to 4. Normal all other shifts up or down. It will shift out of 3rd and pause 1-2 sec before 4th engages. When 4th engages it is firm and no evidence of slippage in any gear. Fluid looks and smells good.
2. I am going to change fluid & filters before we take a trip. Is there any way to tell if it has transynde?
3. Also, the lock-up doesn't seem to stay on at highway speeds. At 60-65 mph in 6th gear, I notice that engine RPM will flucuate when we go up a slight hill or overpass.
4. The engine has a Jacobs E-Brake and the Allison service dept. told me that the retarder tranmissions did not preselect. What is the best solution?
Thanks for your input.
Jim
1. There is a slight delay (~1-2 sec) on upshift from 3 to 4. Normal all other shifts up or down. It will shift out of 3rd and pause 1-2 sec before 4th engages. When 4th engages it is firm and no evidence of slippage in any gear. Fluid looks and smells good.
2. I am going to change fluid & filters before we take a trip. Is there any way to tell if it has transynde?
3. Also, the lock-up doesn't seem to stay on at highway speeds. At 60-65 mph in 6th gear, I notice that engine RPM will flucuate when we go up a slight hill or overpass.
4. The engine has a Jacobs E-Brake and the Allison service dept. told me that the retarder tranmissions did not preselect. What is the best solution?
Thanks for your input.
Jim