Patrick Dickson Posted May 6, 2021 Share Posted May 6, 2021 I have '09 Mack with an Mp8 engine and the fan clutch stays on. The clutch fan is electric. My question is is there a conversion to manual air assist for this engine. If so what would be the best route to take. Thank you Quote Link to comment https://www.bigmacktrucks.com/topic/66655-fan-clutch-conversions/ Share on other sites More sharing options...
Onyx610 Posted May 14, 2021 Share Posted May 14, 2021 I don’t think their is such a conversion and I think you would still have the same issue anyway. Being the ECM would pry still command some type of air solenoid to activate the fan. Best bet would to figure out why the fan is always on. Quote Link to comment https://www.bigmacktrucks.com/topic/66655-fan-clutch-conversions/#findComment-473859 Share on other sites More sharing options...
Joey Mack Posted May 14, 2021 Share Posted May 14, 2021 find the ground wire at the fan harness, cut into it and run it to a switch in the dash. the old timey way... or mabey find the fuse and put it on switch.... or..... wait for a few more comments. jojo Quote Link to comment https://www.bigmacktrucks.com/topic/66655-fan-clutch-conversions/#findComment-473860 Share on other sites More sharing options...
Dirtdog Posted July 9, 2021 Share Posted July 9, 2021 When these fan hubs die they automatically revert to locking up as to not leave you stranded with no fan loaded and risk cooking the motor. Can t into the solenoid wire, run it to a switch as a band aid but only if the fan solenoid isn't the reason it isn't working anymore. Power= fan off, no power= fan on. Takes a little while after feeding it power to disengage as they're viscous. Quote Link to comment https://www.bigmacktrucks.com/topic/66655-fan-clutch-conversions/#findComment-476542 Share on other sites More sharing options...
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