Liberty 4WD L4-2.8L DSL Turbo VIN 5 (2006)
Fuel Filter: Description and Operation
The fuel filter/water separator assembly is located in the left rear corner of the engine compartment. It incorporates the fuel system prime button, bleed
screw, fuel temperature sensor, fuel heater and a water in fuel (WIF) sensor. Only the fuel filter canister and the WIF sensor are serviced separately. The
fuel filter has a 3 micron element and tightens clockwise to the housing..
The fuel filter/water separator protects the high pressure fuel injection pump by removing water and contaminants from the fuel with a three micron filter
element. 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.
A Water-In-Fuel (WIF) sensor is attached to the fuel filter and serviced separately. Refer to Water-In-Fuel Sensor Description/Operation.
The fuel heater and fuel temperature sensor are part of the fuel filter assembly head and not serviced separately from the head.
