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International Automotive Technicians Network
Re: DT466 OVERHEAT
Posted to HD/Fleet Forum on 8/28/2018

Make sure the rad is clean on he outside, dirt between the fins and tubes drastically affects heat transfer. Give it a good wash-through and see if that helps. Make sure the shrouds are in place and not broken.

If the rad is old and/or high mileage, it may b... Login to read more.