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Berkyeng

British Columbia

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Posted: 06/29/20 12:06pm Link  |  Quote  |  Print  |  Notify Moderator

One other thing I forgot to mention was that I drove it in economy “mode” (presses the “mode”button on the tranny control so the red light was on). Is this the right strategy on long climbs or should I be switching out of that when going up hills?


BerkyEng
Sparwood BC
2009 Berkshire 390BH

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Posted: 06/30/20 08:38am Link  |  Quote  |  Print  |  Notify Moderator

Transmission use Tow Haul if it has it. Does the engine fan come on???

Simply hold it to the floor going ups steep grades as it will run in the proper gear. NO you will not hurt it!!!


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wolfe10

Texas

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Posted: 06/30/20 10:21am Link  |  Quote  |  Print  |  Notify Moderator

There is no Tow Haul on Allison 3000 transmission.

And economy mode ON is OK as long as YOU select the proper gear (higher end of engine RPM range and less than full throttle).

If you expect all automatic, then on long steep grades keep it in performance mode (which is the mode it starts in every time you start the engine). The problem I see with that is that you have decided that it is smarter than you. May be true, may not-- depends on the driver.

Said another way, a smart drives is PROactive-- seeing what is happening where you are now and what is coming up. While the transmission can only e REactive-- seeing what happened well behind you.

No rights or wrongs here-- but the Allison does allow you to treat it like a manual transmission in terms of selecting the right gear.


Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240


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