Fuel Pressure Test Port: Service and Repair

REMOVAL

1. If fuel injection supply manifold is mounted to engine, remove fuel tank filler cap, then release pressure from system at fuel pressure relief valve on fuel injection supply manifold using fuel pressure gauge.

NOTE: Fuel pressure relief valve cap on fuel pressure relief valve must be removed.

2. Using an open-end wrench or suitable deep well socket, remove fuel pressure relief valve.

INSTALLATION

1. Install fuel pressure relief valve. Tighten fuel pressure relief valve to 7.75 Nm (66 lb in).

2. Install fuel pressure relief valve cap. Tighten fuel pressure relief valve to 0.6 Nm (5.5 lb in).