REMOVAL
Note. The Fuel Heater is not a separately serviceable item. If diagnostics have led you to replace this sensor, then the whole fuel filter housing assembly needs to be changed. Refer to SEPARATOR and FILTER, Fuel and Water , Removal .
- With engine not running, Route the fuel drain hose to an appropriate container and rotate drain valve (4) one quarter turn counter clockwise to open it. Turn the key to the "ON" position. This will cycle the fuel pump for 2 seconds and drain the fluid from the fuel filter housing. Turn the key to the "OFF" position and rotate the drain valve (4) clockwise one quarter turn to close it.
- Disconnect drain hose (6) from the fuel drain valve.
- Remove four drain valve mounting screws (5) and the drain valve (4) from filter housing (1).