Fuel Lines; Fuel Pump - Chrysler 2005 Crossfire SRT6 Service Manual

14 - 16 FUEL DELIVERY ZH

FUEL LINES

DESCRIPTION
WARNING: THE FUEL SYSTEM MAY BE UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF).
BEFORE SERVICING ANY FUEL SYSTEM HOSES, FITTINGS, LINES, OR MOST COMPONENTS, FUEL SYS-
TEM PRESSURE MUST BE RELEASED. REFER TO THE FUEL SYSTEM PRESSURE RELEASE PROCEDURE.
The Fuel Lines/Tubes/Hoses used on Fuel Injected Vehicles are of a special construction. This is due to the higher
fuel pressures and the possibility of contamination in the fuel system. If it is necessary to replace these lines/tubes/
hoses, only those designed for this vehicle may be used.
The hose clamps used to secure rubber hoses on fuel injected vehicles are of a special rolled edge construction.
This construction is used to prevent the edge of the clamp from cutting into the hose. Only these rolled edge type
clamps may be used in this system. All other types of clamps may cut into the hoses and cause high-pressure fuel
leaks. Use new, original equipment type hose clamps as replacements when necessary.

FUEL PUMP

DESCRIPTION
The Fuel Pump is a rotating spindle-type pump. The Fuel Pump moves fuel from the Fuel Tank through the Fuel
Filter to the engine's Fuel Injectors.
OPERATION
Note: The check valve maintains the volume of fuel in the fuel rail and lines, not the fuel pressure.
The Fuel Pump draws fuel through a strainer and pushes it through the motor to the outlet. The pump contains a
check valve. The valve in the pump outlet maintains the volume of fuel during engine off conditions for a short while.
It is normal for fuel pressure to drop to zero after cool down. The Fuel Pump Relay provides voltage to the Fuel