2001 blue bird dt466e over heated three times on the driver.
replace radiator (cores bad on the bottom) replace thermostat ,fan clutch
water pump.also replace the first heater core by the front door.we had to
replace the heater valve inside the bus by the driver seat (broken)
now it only has heat high idle sitting then there is heat inside. when moving down the road no heat again. thanks for your help..