Durango 2WD V8-4.7L VIN N (2001)
Radiator Cooling Fan Pump: Description and Operation
ELECTRIC COOLANT PUMP
The electric coolant pump is used on all vehicles. The pump is located under the hood on the right inner fender well.
The pump is controlled by the HVAC controller and is only operational under the following conditions:
1. Vehicle speed below 17 m.p.h.
2. Coolant temperature above 1500 but less than 230 °F.
3. Blower speed setting in any position other than OFF.
4. Temperature heat setting above the halfway setting (60% heat).
5. The pump will turn off at speeds above 30 m.p.h.
6. If the coolant temperature rises above 230 °F.
7. The blower switch is turned to the OFF position.
