07 Mack CHN613 Rawhide ultrashift problems

Discussion in 'Mack Forum' started by 93ratster, Jan 23, 2015.

  1. 93ratster

    93ratster Bobtail Member

    1
    0
    Jan 23, 2015
    Texas
    0
    ultrashift rto16910B-DM3, engine went to derate mode, trans. monitor went to flashing "F", service lite blinks constantly. disconnected batteries to reset TECU, starts fine, engine fan runs constantly, now it's flashing two stars on monitor, when key is turned off, engine will run approx. 10 seconds before it will shut engine down. Tried to power up again to set clutch and gear position, will not respond to any reset modes. HELP!!!!!
     
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  3. Ronsz28

    Ronsz28 Bobtail Member

    4
    1
    Mar 18, 2015
    0
    You will need to count the flashes ...pause ... And put it into a number and will need to check with your local tech have them tell you what the flash code is or you can google it with year make and model
     
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