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!!!!!
07 Mack CHN613 Rawhide ultrashift problems
Discussion in 'Mack Forum' started by 93ratster, Jan 23, 2015.