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How to Install a Fuel Injector on a Concorde

The Chrysler Concorde was a full-size sedan that Chrysler produced from 1993 to 2004. It was available with a 2.7-liter or a 3.5-liter engine, both with multi-point fuel injection. This design uses an electronically-controlled fuel injector to send fuel to each cylinder at the correct point in the cylinders combustion cycle. The procedure for installing a fuel injector is similar for both of the Concordes engines.

Instructions

1

Disconnect the fuel pump relay from the power distribution center in the engine compartment. Start the engine and allow it to stall. Continue to crank the engine until it no longer starts. Turn the ignition off, and replace the fuel pump relay.

2

Remove the cable from the negative battery terminal with a socket wrench to prevent the battery from producing sparks. Disconnect the plenum for the intake manifold, and cover the opening to the intake manifold with a clean shop cloth. Put a shop cloth under the quick-connect fittings on the fuel line, and squeeze the quick-connect fittings together. Detach the fuel line from the fuel rail.

3

Disconnect the electrical connectors from the fuel injectors. Remove the mounting bolts for the fuel rail with a socket wrench, and remove the fuel rail from the engine. Release the retainer clips on the fuel injectors, and detach the fuel injectors from the fuel rail.

4

Coat the O-rings on the new fuel injectors with engine oil, and install the fuel injectors to the fuel rail. Secure the fuel injectors with the retaining clips. Press the fuel rail into place on the cylinder head, ensuring that the fuel rail is fully seated.

5

Tighten the mounting bolts for the fuel rail to 100 inch-pounds with a torque wrench if you have a 2.7-liter engine. Tighten the mounting bolts to 21 foot-pounds if you have a 3.5-liter engine.

6

Remove the shop cloth from the opening of the intake manifold, and connect the plenum for the intake manifold with a socket wrench. Coat the quick-connect fittings on the fuel line with engine oil and connect the fuel line to the fuel rail. Attach the cable to the negative battery terminal.

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