All,
We have a 2001 Monoco Executive, Cummins 500, with Allison 4000 MH transmission-- 30,000 miles, new set of batteries 6 mos. ago. Yesterday, cruising along 101 So., headed for New Mexico, in the rain of course, received dashboard warning light, "Check Trans." Looked down, and noticed tran had downshifted to L5, though 6 was selected. I could not manually up or downshift. The only other warning light displayed on the dash was the "((ABS))." Approximately 2-3 mins later, the transmission seemed to "shut us down", and I coasted to a safe place to the side. The engine remained idling, but the transmission console was going nuts, as well as the Coach View of the Trip Tek. I shut the enginge off. Started the generator but could only do so with battery boost. Let it run for considerable time, but every time I tried to start the engine, it would "kill" the running generator, and refuse to start.
Transmission temperature had been cool (I believe 145 degrees was the highest) since we had only been traveling for about 45 minutes and traffic was congested.
I'm assuming the trans was receiving low voltage. Any other ideas?
Sunday, 12/18/05 update:
1. Just returned from trouble shooting rig basics with my son-in-law who is tech/mechanic litereate. Disconnected chassis batteries. Found them to be fully charged and inline fuses on battery harnesses are good.
2. Don't know if this is related, but the generator will not even crank from the chassis batteries. We can only start generatior by hitting the boost switch (presumably from the coach bank of batteries).
Transmission console has a red light on in the Mode button. And the engine will not attempt to crank.
I'll probably have a Truck Emergency repair guy tomorrow, at the site, but any suggestions would be sincerely appreciated.
Rhc
We have a 2001 Monoco Executive, Cummins 500, with Allison 4000 MH transmission-- 30,000 miles, new set of batteries 6 mos. ago. Yesterday, cruising along 101 So., headed for New Mexico, in the rain of course, received dashboard warning light, "Check Trans." Looked down, and noticed tran had downshifted to L5, though 6 was selected. I could not manually up or downshift. The only other warning light displayed on the dash was the "((ABS))." Approximately 2-3 mins later, the transmission seemed to "shut us down", and I coasted to a safe place to the side. The engine remained idling, but the transmission console was going nuts, as well as the Coach View of the Trip Tek. I shut the enginge off. Started the generator but could only do so with battery boost. Let it run for considerable time, but every time I tried to start the engine, it would "kill" the running generator, and refuse to start.
Transmission temperature had been cool (I believe 145 degrees was the highest) since we had only been traveling for about 45 minutes and traffic was congested.
I'm assuming the trans was receiving low voltage. Any other ideas?
Sunday, 12/18/05 update:
1. Just returned from trouble shooting rig basics with my son-in-law who is tech/mechanic litereate. Disconnected chassis batteries. Found them to be fully charged and inline fuses on battery harnesses are good.
2. Don't know if this is related, but the generator will not even crank from the chassis batteries. We can only start generatior by hitting the boost switch (presumably from the coach bank of batteries).
Transmission console has a red light on in the Mode button. And the engine will not attempt to crank.
I'll probably have a Truck Emergency repair guy tomorrow, at the site, but any suggestions would be sincerely appreciated.
Rhc
