What causes a fuel leak in a Jeep Liberty?
If pressure now holds at or above 30 psi, a leak may be found at a fuel tube/line. If no leaks are found at fuel tubes or lines, one of the check valves in either the electric fuel pump, fuel fil- ter or fuel pressure regulator may be leaking.
Where is the fuel return line on a Jeep Liberty?
A fuel return system is provided within the fuel pump module using check valves. A separate fuel return line from the engine to the tank is not used. The fuel pressure regulator and the main fuel filter are not combined. They are separate items.
What is the check valve on a Jeep Liberty?
Check Valve Operation: The electric fuel pump outlet contains a one-way check valve to prevent fuel flow back into the tank and to maintain fuel supply line pressure (engine warm) when pump is not oper- ational. It is also used to keep the fuel supply line full of gasoline when pump is not operational.
How does the fuel filler work on a Jeep Liberty?
A fuel filler/vent tube assembly using a pressure/ vacuum, 1/4 turn fuel filler cap is used. The fuel filler tube contains a flap door located below the fuel fill cap. A one-way check valve is installed into the tanks fuel fill fitting.
If pressure now holds at or above 30 psi, a leak may be found at a fuel tube/line. If no leaks are found at fuel tubes or lines, one of the check valves in either the electric fuel pump, fuel fil- ter or fuel pressure regulator may be leaking.
A fuel return system is provided within the fuel pump module using check valves. A separate fuel return line from the engine to the tank is not used. The fuel pressure regulator and the main fuel filter are not combined. They are separate items.
Check Valve Operation: The electric fuel pump outlet contains a one-way check valve to prevent fuel flow back into the tank and to maintain fuel supply line pressure (engine warm) when pump is not oper- ational. It is also used to keep the fuel supply line full of gasoline when pump is not operational.
What causes a 2005 Jeep Liberty to stall?
Vehicle stalled while pulling out of the garage due to air pulling into the fuel system through the electrical connection. Known issue for this vehicle type/model. Possible fire hazard and stalling potential. Have to replace the fuel filter head. 2005 Jeep Liberty diesel. Fuel/water separator leaks fuel through the heater electrical lines.
Where is the fuel tank located on a Jeep Liberty?
OPERATION Fuel is picked up in the fuel tank by the fuel pump module. This module is located on the bottom of the fuel tank. A fuel return system is provided within the fuel pump module using check valves. A separate fuel return line from the engine to the tank is not used. The fuel pressure regulator and the main fuel filter are not combined.
What should the fuel pressure be on a Jeep Liberty?
Normal operating pressure should be 339 kPa +/–34 kPa (49.2 psi +/–5 psi). (7) Shut engine off. Fig. 2 CONNECTING ADAPTER TOOL—TYPICAL 1 – VEHICLE FUEL LINE 2 – TEST PORT “T” 3 – SPECIAL TOOL 6923, 6631, 6541 OR 6539 4 – FUEL PRESSURE TEST GAUGE 5 – FUEL LINE CONNECTION AT RAIL 6 – FUEL RAIL KJ FUEL DELIVERY 14 – 3 FUEL DELIVERY (Continued) 4.