Fuel Pressure Regulator: Service and Repair

No. 5 Water Bypass`:

Removal
- Disconnect negative battery cable.
- Disconnect ISC air hose.
- Remove pressure regulator vacuum line.
- Remove right side wiring harness cover and upper ignition wire cover.
- Disconnect water bypass line.

Fuel Return Line:

- Remove union bolt and fuel return line.

Fuel Pressure Regulator:

- Loosen regulator lock nut and remove regulator.

O-ring Installation:

Installation
- Fully loosen regulator lock nut.
- Install new o-ring on regulator.

Regulator Installation:

- Hand tighten pressure regulator and align as shown.
- Install fuel return line.

Torque value - 22 ft.lb (29 Nm)

Fuel Pressure Regulator:

- Tighten lock nut.

Torque value - 22 ft.lb (29 Nm)