We just bought an 2012 international prostar about two months ago. It spent almost a month in dealer for warranty work and have replaced the injectors and the injector wiring harness due to a short. At the time we did the work on the injectors it was having trouble shifting. It is a 13 spd ultrashift.
They claimed that the shifting problem was due to a failure with the injectors and was working fine after the "fix".
Now it has more problems. On the way back from its last trip the yellow triangle warning light came on along with the fault code "gen trans flt". It would not upshift until the driver disabled the anti rollback switch. Everything went back to normal for a few hrs and happened again.
Now the truck will not go into 1st at all. Flashes N then F and beeps whenever trying to put into gear. ABS module code electrical fault code started flashing as well. As well as the numbers 88 and 27 Where the gear number would normally display.
Have tried disconnecting batteries top of transmission fluid checked as many grounds as we could find.
Any ideas ? Am broken down currently and have no one open at the moment to call.
please help. truck wont go into gear
Discussion in 'International Forum' started by kenworthcanuck, Aug 14, 2014.
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I don't know if this help. I have a 2006 9400 ultra shift , I had the same problem a couple of weeks ago. My truck would not go into gear. I had the speed sensor replaced, it fixed problem.... Cost $883
Puppage Thanks this. -
and that folks is why you stick with a Manual Transmission when you buy a truck. Good Luck.
SHO-TYME, "semi" retired and jbatmick Thank this. -
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Can u flip it to manual and shift it? I have 10 speed ultra shift and mine lets me alternate back and forth
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If you are getting the ABS module fault coming up there may issues with the datalink between the Trans and ABS and Engine.
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