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Old 01-12-2018, 07:45 AM   #1
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2500 series transmisions

Just had my 2014 Itasca Meridian 34B into the shop to check the transmission settings. My shift point was set at 2800 rpm - to high for the Cummings 6.7 ISB. When they plugged in the programmer the computer recognized the problem automatically changing the shift points to 2600 rpm. I don't understand all that changed, but it seems like someone at Freight liner had figured out that they programed the motor and transmissions to the wrong RPM and made a computer change that would be automatic to any 2500 trans hooked up to the programmer.

Well to say the difference in shifting was noticeable is an understatement - pulls and you can feel the up-shifts and downshifts - no more hunting for the correct gear.

Well done Freight Liner and Allison!
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Old 01-12-2018, 08:14 AM   #2
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I have a 2014 forza on a freighliner chassis with a 2500MH trans that's having a hard time finding a gear going uphill. Mine is going to the shop in the Spring to be reprogrammed. There is a recall on the 2500 series transmission for a shifting issue.
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Old 01-12-2018, 12:18 PM   #3
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Recall

Quote:
Originally Posted by Forzatm View Post
I have a 2014 forza on a freighliner chassis with a 2500MH trans that's having a hard time finding a gear going uphill. Mine is going to the shop in the Spring to be reprogrammed. There is a recall on the 2500 series transmission for a shifting issue.

You need to verify that your coach is on the recall list with Allison and Freight-liner. IMHO, also the initial warranty ends after 36 months.
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Old 01-12-2018, 04:44 PM   #4
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I received a recall notice in reference to Allison Tech Tip #TT8009EN which states that the service will be performed at no charge to me as long as I take it in before May 31, 2018.
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