Removal

1. Disconnect the battery ground cable. For additional information, refer to Section.

2. Remove the engine air cleaner outlet pipe. For additional information, refer to Section.

3. Disconnect the vacuum hose and the idle air control (IAC) valve electrical connector.

4. Disconnect the throttle position (TP) sensor electrical connector and the evaporative emissions (EVAP) return tube.

5. Disconnect the accelerator and the speed control cables from the throttle body cam.

6. Remove the bolts and position the accelerator cable bracket assembly aside.

7. Disconnect the differential pressure feedback exhaust gas recirculation (EGR) system electrical and vacuum connections.

8. Disconnect the EGR vacuum regulator solenoid electrical and vacuum connections.

9. Disconnect the positive crankcase ventilation (PCV) tube.

10. Disconnect the vacuum hoses.

11. Disconnect the following:

• Ignition coil electrical connector.
• Radio interference capacitor electrical connector.
• Spark plug wires.

12. Disconnect the vacuum hose.

13. NOTE: For ease in installation, record the location of the long bolts and the short bolts.

Remove the upper intake manifold.

1. Remove the 12 bolts.

2. Remove the upper intake manifold.

14. Remove and discard the upper intake manifold gasket.