INSTALLATION
The fuel pressure regulator is part of the fuel pump module. Remove the fuel pump module from the fuel tank to access the fuel pressure regulator. Refer to the Fuel Pump Module REMOVAL .
- Lightly lubricate the O-rings with clean engine oil and place them into opening in pump module. (Scheme 16)
- Push regulator into opening in pump module.
- Retaining tabs snap into housing.
Scheme 16
| 1 - UPPER O-RING |
|---|
| 2 - LOWER O-RING |
The electric fuel pump is located in and is part of the fuel pump module. It is a positive displacement, gerotor type, immersible pump with a permanent magnet electric motor. The fuel pump module is suspended in fuel in the fuel tank.
The 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 pump pressure during engine off conditions, for a short while. It is normal for fuel pressure to drop to zero after cooldown. The fuel pump relay provides voltage to the fuel pump. The fuel pump has a maximum deadheaded pressure output of approximately 880 kPa (130 psi). The regulator adjusts fuel system pressure to approximately 400 kPa +/-34 kPa (58 psi +/- 5 psi).
The fuel pump module is installed in the top of the fuel tank. (Scheme 17), (Scheme 18) and (Scheme 19).
Scheme 17
| 2 - FUEL PUMP MODULE |
|---|
| 3 - PRESSURE REGULATOR |
| 4 - FUEL LEVEL SENDER |
Scheme 18
| 2 - FUEL RESERVOIR |
|---|
| 3 - PRESSURE REGULATOR |
| 6 - GROUND STRAPS |
Scheme 19
| 1 - INLET STRAINER |
|---|
| 2 - FUEL RESERVOIR |
| 3 - FUEL PRESSURE REGULATOR |
| 4 - FUEL LEVEL SENSOR |
| 5 - FILTER |
| 6 - GROUND STRAPS |
The fuel pump module contains the following
- Electric fuel pump
- Fuel pump reservoir
- Inlet strainer
- Fuel pressure regulator
- Fuel gauge sending unit
- Fuel supply line connection
The inlet strainer, fuel pressure regulator and fuel level sensor are the only serviceable items. If the fuel pump or electrical wiring harness requires service, replace the fuel pump module.
The electric fuel pump is located in and is part of the fuel pump module. It is a positive displacement, gerotor type, immersible pump with a permanent magnet electric motor.
The pump draws fuel through a strainer and pushes it through the motor to the outlet. The pump contains one check valve. The check valve, in the pump outlet, maintains pump pressure during engine off conditions. The fuel pump relay provides voltage to the fuel pump.
The fuel pump has a maximum deadheaded pressure output of approximately 880 kPa (130 psi). The regulator adjusts fuel system pressure to approximately 400 +/-34 kPa (58 +/-5 psi).