Five Hundred, Mercury Montego 2005

Relieving Fuel System Pressure


Locate the fuel pump relay in the engine compartment power distribution box relay no. 53. Remove the fuel pump relay. Start the engine and allow it to idle until it stalls. Crank the engine for 5 seconds to ensure fuel supply manifold pressure is released. When vehicle service is complete, reinstall the fuel pump relay and turn the ignition on to pressurize the fuel system. Start the vehicle and check the system for leaks.

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Fig. Fuel pump relay location