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Home >> Jeep >> 1989 >> Wagoneer >> Repair and Diagnosis >> Engine Performance >> System >> 4.0L MPFI CEC Testing >> Removal & Installation >> Fuel Injector >> Removal

Fuel Injector: Removal

Disconnect negative battery cable. Disconnect fuel lines from fuel rail assembly. Disconnect injector wire harness connector. Remove fuel rail retaining bolts. Remove vacuum hose from fuel pressure regulator valve. Remove fuel rail by gently rocking until injectors are out of intake manifold. Remove fuel injector retaining clips and remove fuel injectors. On models with (A/T), it may be necessary to remove throttle pressure cable and bracket to remove fuel rail assembly.

NOTE: Use new "O" rings, spacers and retainers before connecting fuel lines and injectors.