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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 fuel pressure relief valve (Schrader valve) on fuel supply manifold, near fuel pressure regulator. See Figure
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- As an alternate method, disconnect inertia switch connector behind instrument panel, under radio. Start engine and operate until it stalls.