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Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 2994
Experience:  ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician
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My truck is a k104b with the eaton fuller autoshift 18speed

Customer Question

My truck is a k104b with the eaton fuller autoshift 18speed but its not working probably each time it needs to change a gear it flashes the up arrows on the dash and i gotta take my foot of the throttle for it to change into the next. Same with downshifting it show up down arrows on the dash and i gotta rev the truck for it to downshift. Is there anyway i can reset it so i can have the normal auto mode back?
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Jeremy replied 1 year ago.

My name is ***** ***** I will assist you.

Did this just start happening suddenly? You shouldn;t be doing that at all. The truck should be doing it for you by the signal from the TCM. I'm wondering if you have a software revision issue.

Did the engine get worked on at all by a engine dealer? They may have done an update on the ECM, but put the wrong on in for the truck. It is either that or the clutch is starting to go on the tranmssion and it isn't sending the signal to the transmission moodule that it is ready for a shift. The last is one ofthe shaft sensors could be bad.

Are you getting any codes at all by chance?

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Jeremy

Expert:  Jeremy replied 1 year ago.

I see you viewed my response, but didn't respond. Do you still need assistance? Thanks.

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