HelloI have a 1996 Monaco Dynasty. I am currently at a RV camp 3 hours from home to see fall colors. While driving at first the RV was driving just fine. An hour into the trip, I noticed that the RPM was running at 2800 rpm at 5th shift. Got to a red light and when I went to shift from 4th to 5th, the RPM went to 3500 before shifting. So painful. It got to the point where I kept the speed to under 80 km so that the RPM would stay around 2800. No changes to any of the gauges while the strong increases in RPM. No changes in sound of engine when driving with high RPM. Last week the RV was in the shop when the fuel solenoid was replaced, line from oil to turbo boost replaced, cooler and fuel filters changed, and turbo boost was repaired as it was not working. I will be going home Wednesday and would really appreciate any thoughts. Thank you in advance.

Ever bother to change the fluid?

Which fluid(s) were you thinking of and how would that impact the issue?

Tranamiasion fluid of course. Trans fluid can make a hugh impact on how the trans works. Mainly slippage of the clutches. Which if you allow it to go on for very long could result in a very very expensive rebuild.

Use the Allison shift pad to check for diagnostic codes.If you need instructions on doing it, let us know.Let us know what you find.

Will be out running errands, so here is the "how to":Ignition on, engine offPush up and down arrows on the Allison shift pad at the same time. Your transmission was right at the time that added "check fluid level from the shift pad), so you will either see O L or d-1. If O L, hit the up and down arrows again at the same time to get to diagnostic codes (d 1).If there is a diagnostic code stored, it will flash d 1 and then the two digit codes. Copy it down. If no codes, it will show d 1 - -. If you get a diagnostic code, push the mode button to go to the next diagnostic code. when you get a - -. you are finished. Just turn off the ignition.Allison's website and the Allison owners manuals that come with your coach will have the list of codes.

RPM rises to 3500 to shift from 4th to 5th | Good Sam Community

15 Replies

wolfe10
Explorer
Oct 09, 2018
Will be out running errands, so here is the "how to":

Ignition on, engine off

Push up and down arrows on the Allison shift pad at the same time. Your transmission was right at the time that added "check fluid level from the shift pad), so you will either see O L or d-1. If O L, hit the up and down arrows again at the same time to get to diagnostic codes (d 1).

If there is a diagnostic code stored, it will flash d 1 and then the two digit codes. Copy it down. If no codes, it will show d 1 - -.

If you get a diagnostic code, push the mode button to go to the next diagnostic code. when you get a - -. you are finished. Just turn off the ignition.

Allison's website and the Allison owners manuals that come with your coach will have the list of codes.
wolfe10
Explorer
Oct 09, 2018
Use the Allison shift pad to check for diagnostic codes.

If you need instructions on doing it, let us know.

Let us know what you find.
donn0128
Explorer II
Oct 09, 2018
Tranamiasion fluid of course. Trans fluid can make a hugh impact on how the trans works. Mainly slippage of the clutches. Which if you allow it to go on for very long could result in a very very expensive rebuild.
ricelake922
Explorer
Oct 09, 2018
Which fluid(s) were you thinking of and how would that impact the issue?
SidecarFlip
Explorer III
Oct 09, 2018
Ever bother to change the fluid?

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RPM rises to 3500 to shift from 4th to 5th

15 Replies

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