steeler Posted October 30 Share Posted October 30 Doozy here, as normal for me. 2016 mp7 overheating in a pull, or during regen. Engine fan will not engage at all for coolant temp, but will for air conditioning pressure, and manually with tech tool. New fan drive, ecu and vcu. Customer had replaced water pump, thermostat, fan drive before bringing it to me. Didn't take long to determine the fan is not speeding up with coolant temp, but appears to work fine with other signals... Quote Link to comment https://www.bigmacktrucks.com/topic/74694-mp7-overheating/ Share on other sites More sharing options...
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