Quote:
Originally Posted by Glenn D
Hello all,
I have a 2018 Tuscany which (I have been told) has the Cummings VGT Exhaust break. The break does not appear to work properly.
When going down a hill (doesn't matter how steep but the more steep the worse it is) the Allison transmission appears to down shift, usually form 6th to 2.4, which I suppose is the pre set gear but the engine only slows down a bit and many times does not slow but gains speed. My last trip I am sure I burnt my coach breaks trying to slow and for the first time in my life was looking for the emergency hill to pull off the road.
I have tried to manually down shift but that didn't work. I called Freightliner and they said it is a Cummins issue and Cummins said it was the after market vendor. Everything I have read indicates that this product is Cummins.
Not withstanding the finger pointing has anyone had this issue? Yes it is under warranty but checking with the Forum.
Thanks
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It is a Freightliner problem. Take it to the Freightliner Factory Service Center in Gaffney, SC.
https://www.fcccrv.com/parts-and-ser...ervice-center/
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