RAM 3500 Truck 2WD L6-5.9L DSL Turbo VIN C (2003)
Fuel Filter: Description and Operation
FUEL FILTER
The fuel filter/water separator assembly is located on left side of engine above starter motor. The assembly also includes the fuel heater and
Water-In-Fuel (WIF) sensor, and fuel transfer pump.
The fuel filter/water separator protects the fuel injection pump by removing water and contaminants from the fuel. The construction of the filter/separator
allows fuel to pass through it, but helps prevent moisture (water) from doing so. Moisture collects at the bottom of the canister.
Refer to the maintenance schedules for the recommended fuel filter replacement intervals.
For draining of water from canister, refer to Fuel Filter/Water Separator Removal/Installation.
A Water-In-Fuel (WIF) sensor is attached to side of canister. Refer to Water-In-Fuel Sensor Description/ Operation.
The fuel heater is installed into the top of the filter/separator housing. Refer to Fuel Heater Description/Operation.
See: Powertrain Management/Fuel Delivery and Air Induction/Fuel/Water Separator
See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Heater
