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How to Install Fuel Injectors on 94 95 Mustangs

The Mustang is a series of cars manufactured by the Ford Motor Company since 1964. The 1994 models were the first fourth generation Mustangs and represented a major redesign from the previous generation. The standard for the 1994 and 1995 Mustangs was a 6-cylinder 3.8-liter engine with electronic fuel injection. The fuel injector in these vehicles is located on top of the engine and is part of the fuel supply manifold assembly.

Instructions

1

Open the fuel tank cap to relieve the pressure in the fuel tank. Connect fuel pressure gauge T80L-9974-B to the pressure relief valve on the fuel supply manifold. Place the open end of the hose for the fuel pressure gauge into a container approved for gasoline. Open the pressure gauge to relieve the pressure in the fuel system and disconnect the pressure gauge from the relief valve.

2

Release the retaining clips for the fuel lines on the fuel supply manifold and remove the vacuum line on the fuel pressure regulator. Detach the fuel lines from the fuel supply manifold and disconnect the retaining bolts on the fuel supply manifold with a socket wrench.

3

Rock the fuel rail assembly back and forth gently to detach it from the fuel injectors. Use the same technique to disconnect the fuel injectors from the intake manifold. Replace any damaged O-rings for the fuel injectors.

4

Apply a thin layer of engine oil to the O-rings and install them on to the fuel injectors. Connect the fuel injectors to the fuel rail by gently pushing and twisting the fuel injectors. Install the fuel rail assembly onto the fuel supply manifold and ensure the O-rings are properly seated.

5

Tighten the mounting bolts for the fuel supply manifold with a torque wrench. These mounting bolts require a torque of 15 to 22 foot-pounds for the 3.8-liter and 5.0-liter engines and 71 to 106 inch-pounds for the 4.6-liter engines. Connect the fuel lines to the fuel supply manifold and connect the vacuum line to the fuel pressure regulator. Attach the retaining clips for the fuel lines on the fuel supply manifold.

6

Turn the ignition on for a few seconds to pressurize the fuel system and start the engine. Check and correct any fuel leaks.