Upper Intake Manifold
UPPER INTAKE MANIFOLD REMOVAL/INSTALLATION1. Disconnect the negative battery cable.
2. Remove the air cleaner outlet tube.
3. Remove the accelerator cable snow shield.
4. Disconnect the accelerator cable from the cruise control actuator cable.
5. Loosen the bolt and slide the 42 - pin wire connector off the bracket.
6. Disconnect the spark plug wires from the ignition coil.
7. Disconnect the ignition coil and radio ignition interference capacitor connectors.
8. Disconnect the Throttle Position (TP) sensor connector.
9. Disconnect the Idle Air Control (IAC) valve connector.
10. Disconnect the brake booster vacuum, Positive Crankcase Ventilation (PCV) and vacuum hoses from the upper intake manifold.
11. Disconnect the throttle body vapor management hose.
12. Remove the nuts.
13. Remove the bracket.
14. Remove the upper intake manifold.
15. Remove the upper intake manifold gasket.
16. Remove the ignition coil.
17. Remove the IAC valve.
18. Remove the throttle body.
19. Remove the throttle body gasket (TB gasket).
20. Remove the IAC gasket.
21. Install in the reverse order of removal by taking care of the following note.
Upper Intake Manifold Nut Installation Note
1. Tighten the nuts in the order shown.
Spark Plug Wire Installation Note
Caution: Proper installation of the spark plug wires is critical to vehicle operation. If one spark plug wire is not properly installed on the spark plug or ignition coil, both spark plugs connected to that segment of the ignition coil may not fire under load.
Note:
^ Wipe the spark plug wires with a clean, damp cloth prior to inspection.
^ When a spark plug wire is removed for any reason from a spark plug or ignition coil, or a new spark plug wire is installed, dielectric grease must be applied to the spark plug wire boot prior to installation.
^ Use a small, clean tool to coat the entire interior surface of the boot with dielectric grease or equivalent.
1. Connect the spark plug wires to the ignition coil.