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  1. Medium Duty Trucks
    Ok, need help, 2005C5500 with 6.6 / Allison. Flat bed with 203,000 miles. Stock engine tune.. After 10 miles or so after coming to stop trans codes when shifting to second gear. Po847, Changed D solinoid, internal and external filter, Transend fluid.. Nex test drive coded po847 and Po768...
  2. Allison OEM
    i have a 14 silverado crew cab 6.6 . and out of nowhere lost shift indicator, and is stuck in like 2nd gear ,no power ,and sevice stabila trac light is on . truck starts n idles fine ,but wont shift ..any one else have this problem? im waiting for wife to get home with my code reader as i left...
  3. Allison OEM
    From what I have read else where on the forum the P0762 code "Shift Solenoid C Stuck Open" usually happens in cold weather. Mine has thrown the code in 30 deg celsius while hard sand driving in low range 4wd and blown transmission line between the transmission and cooler. I repaired the line...
1-3 of 3 Results