Upper

1. Remove air cleaner outlet tube as follows:
a. Disconnect wire harness from intake air temperature sensor, then crankcase ventilation tube from air cleaner outlet tube.
b. Loosen air cleaner tube clamps on outlet tube, then disconnect outlet tube from throttle body.
c. Disconnect outlet tube from mass airflow sensor, then remove tube.
2. Disconnect accelerator cable at throttle body, then speed control actuator.
3. Remove accelerator cable bracket bolts and position cable aside.
4. Disconnect vacuum lines at intake manifold, then necessary electrical connectors.
5. Disconnect one crankcase ventilation tube at upper intake manifold and one at positive crankcase ventilation valve.
6. Remove throttle body if necessary, then EGR valve from upper intake manifold.
7. Remove nut and bolt retaining engine support and wiring retainer bracket at lefthand front of intake manifold, then set aside with ignition wires.
8. Remove upper intake manifold bolts/studs, then upper intake manifold and gasket.

Upper Intake Manifold Bolt Tightening Sequence:

9. Reverse procedure to install. Torque upper intake manifold bolts in sequence, to 8 ft lb, then to 15 ft lb, and finally to 24 ft lb.