Fuel Pressure Test Port: Service and Repair

REMOVAL

1. If fuel charging assembly 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 T80L-9974-B.

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

Fuel Pressure Relief Valve:

INSTALLATION

1. Install fuel pressure relief valve. Tighten valve to 6-10 Nm (48-84 lb in) and the fuel pressure-relief valve cap to 0.5-0.7 Nm (4-6 lb in).

2. Install fuel tank cap if removed.