Fuel System Pressure Release: Navajo
- Disconnect negative battery cable. Remove snow/ice shield. Remove air intake tube between air cleaner and throttle body. Remove fuel filler cap to release fuel tank pressure. Connect Fuel Pressure Gauge (49-UN01-010) to relief valve (Schrader valve) on fuel supply manifold, near fuel pressure regulator. See Figure .
- As an alternate method, disconnect inertia switch connector, behind instrument panel, under radio. Start engine, and operate it until it stalls.