Auxiliary Water Pump

The auxiliary water pump is located on the right rear side of the puller fan shroud. The pump is rubber mounted to the shroud. The propose of the auxiliary water pump is to prevent coolant boil over after engine shutdown by cycling coolant through the radiator when the engine is turned Off. If the engine coolant temperature is greater than 105° C (221°F) at ignition Off, the pusher and puller fans will run in series (6 volts each) along with the auxiliary water pump for 2 minutes. This auxiliary pump does not runs at any other time. The auxiliary water pump and mounting bracket are serviced as an assembly.