2014 Seneca 37TS not downshifting

LTUcrew

New Member
Joined
Mar 2, 2024
Posts
7
Location
Bellingham
Hi there,

Any know why out of the blue, my 14 TS stopped downshifting when I let off the gas? It will start downshifting when I drop the selector into 3 but when in D it stopped.

Previously it would do it almost instantly towing or not.
 
Last edited by a moderator:
Hi there,

Any know why out of the blue, my 14 TS stopped downshifting when I let off the gas? It will start downshifting when I drop the selector into 3 but when in D it stopped.

Previously it would do it almost instantly towing or not.

Exhaust brake turned on? My 2014 will "coast" with the EB off.

Once you come to a stop, does it start off in first and upshift okay? No trouble codes or warning lights evident?
 
Exhaust brake turned on? My 2014 will "coast" with the EB off.

Once you come to a stop, does it start off in first and upshift okay? No trouble codes or warning lights evident?


I don’t have or have not found an exhaust brake switch anywhere. It shifts fine from a stop.
 
I complained to Freightliner about the exact same thing on my 22-37TS. They put it on the computer and test drove the diesel out of it and found nothing wrong. I can say that if you press the mode button it will down shift more like what you are used to. I attached a pic of the engine brake switch.
 

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I complained to Freightliner about the exact same thing on my 22-37TS. They put it on the computer and test drove the diesel out of it and found nothing wrong. I can say that if you press the mode button it will down shift more like what you are used to. I attached a pic of the engine brake switch.

His rig is a 2014 as is mine. Lever shifter and no "Mode" button.
 

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