Fuel Filter - Chrysler 2005 Crossfire SRT6 Service Manual

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The fuel pump assembly contains a check valve to maintain some fuel pressure in the system when the engine is
not operating.
If fuel pressure at the pressure regulator exceeds a set amount, an internal diaphragm closes and excess fuel pres-
sure is routed back into the tank through the pressure regulator.
The Diaphragm Pressure Regulator (2) regulates the fuel pressure by means of the return flow (10) quantity to the
fuel tank.
If the pressure rises above the set pressure, the diaphragm (6) is pressed further against the compression spring
(4).
The valve (7) attached to the diaphragm opens the passage for the return flow further. If the pressure drops below
the set pressure, the valve is closed again by the compression spring (4).

FUEL FILTER

The fuel flows through the Fuel Filter (1) trapping any fuel impurities that may lie in the bottom of the tank.
The Fuel Filter can not be serviced separately from the pressure regulator, the entire Fuel Filter/Fuel Pressure Reg-
ulator must be replaced as an assembly. For complete Fuel Filter/Fuel Pressure Regulator removal procedures,
refer to Fuel Filter/Fuel Pressure Regulator removal in this section.
REMOVAL
1. Raise and support the vehicle.
2. Remove the fuel pump splash shield.
WARNING: THE FUEL SYSTEM IS UNDER CON-
STANT FUEL PRESSURE EVEN WITH THE ENGINE
OFF. BEFORE DISCONNECTING ANY FUEL LINES,
THIS PRESSURE MUST BE RELEASED.
3. Release the fuel system pressure. (Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY - STANDARD
PROCEDURE).
Note: Place a shop towel around fuel lines to
catch any excess fuel during disassembly.
4. Remove the fuel filter/pressure regulator fuel line
(1).
5. Remove the fuel rail supply line (3) at the fuel filter/
pressure regulator.
6. Remove the fuel delivery hose.
7. Remove the fuel return hose at the fuel filter/pressure regulator.
8. Remove the clamp retaining screw and remove the fuel filter/pressure regulator.
FUEL DELIVERY 14 - 11