Fuel Injectors

REMOVAL & INSTALLATION

2.3L, 2.5L and 4.0L Engines

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Fuel injection supply manifold
   • Fuel injectors by gently twisting them
   • Inspect the O-rings and replace as needed

     Fig. 1: Exploded view of the fuel injection system–2.3L engine

   To install:

4. Install or connect the following:
   • Fuel injectors
   • Fuel injector supply manifold
   • Negative battery cable
5. Start the vehicle, check for leaks and repair if necessary.

3.0L Engine

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Upper intake manifold
   • Engine control sensor wiring from the fuel injectors
   • Fuel lines
   • Fuel injection supply manifold and injectors as an assembly
   • Vacuum line
   • Fuel injectors from the supply manifold
   • Inspect the O-rings and replace them as needed

   To install:

4. Install or connect the following:
   • Fuel injectors
   • Vacuum line
   • Fuel injection supply manifold. Torque the bolts to 89 inch lbs. (10 Nm).
   • Fuel line
   • Engine control sensor wiring to the fuel injectors
   • Upper intake manifold
   • Negative battery cable
5. Start the vehicle, check for leaks and repair if necessary.