Haha well looky there. Good find. If the coolant temp sensor can't read the water temp it can't provide the correct information to the ECM to engage the fan. Good job finding it.
Fan not coming on at 210F for Cummins engine
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by kabusheke2004, Jun 30, 2020.
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Page 2 of 2