Home Auto Repair How to Change the Fuel Injector on a 1993 Chrysler Concorde 3.3

How to Change the Fuel Injector on a 1993 Chrysler Concorde 3.3

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The Chrysler Concorde was a full-size, four-door sedan with front-wheel drive manufactured from 1993 to 2004. The most common engine in the 1993 model was a six-cylinder 3.3-liter engine with fuel injection. The fuel injectors send fuel to the engine and are part of the fuel rail assembly. The majority of the fuel injector replacement procedure for a 1993 Concorde deals with removing and installing the fuel rail assembly from the engine.

Tools Used: Tools, Socket wrench set, Tool C-4799-1, Gasoline container, Special Quick-Connect Fitting Tool 6751, Engine oil

Change the Fuel Injector

Disconnect the negative battery cable with a socket wrench to prevent the engine from starting during the procedure. Loosen the cap on the fuel tank to relieve the pressure in the fuel tank. Remove the cap for the fuel pressure test port on the fuel rail. Place the open end of the hose on tool C-4799-1 into a container approved for gasoline. Connect tool C-4799-1 to the fuel pressure test port and open the valve on the tool. Allow the fuel to drain into the container to relieve the pressure in the fuel system. Disconnect tool C-4799-1 from the fuel pressure test port and replace the cap on the fuel pressure test port.

Detach the air plenum from the throttle body and the air cleaner. Hold the throttle in the open position, and remove the linkages for the cruise control and throttle body from the throttle shaft. Detach the electrical connectors from the exhaust gas recirculation valve and manifold absolute pressure sensor. Disconnect the vacuum hoses from the positive crankcase ventilation valve and the fuel pressure regulator. Remove the brake booster hose and throttle body purge hose from the intake manifold.