Lower

REMOVAL AND INSTALLATION
1. Drain cooling system.
2. Disconnect rubber radiator overflow hose from radiator and position aside.
3. Remove upper intake manifold.
4. Disconnect heater hoses from hot water tube.
5. Disconnect hot water tube to water pump hose.
6. Remove hot water tube nut.
7. Disconnect engine coolant temperature sensor electrical connector.
8. Disconnect engine control sensor wiring from hot water tube.
9. Remove hot water tube from lower intake manifold.
10. Remove vacuum line assembly.
11. Disconnect upper radiator hose from lower intake manifold.
12. Remove thermostat water bypass hose.
13. Disconnect fuel injector electrical connectors.
14. Remove rear engine ground strap.
15. Disconnect camshaft position sensor electrical connector.
16. Remove camshaft synchronizer.

Fig. 3 Lower Intake Manifold Bolt Loosening Sequence.:

17. Loosen, then remove lower intake manifold bolts in sequence shown in Fig. 3.
18. Remove lower intake manifold and gasket.

Fig. 4 Lower Intake Manifold Bolt Tightening Sequence.:

19. Reverse procedure to install. torque lower intake manifold bolts, in sequence shown in Fig. 4, in two steps: first to 5-10 ft lb, then to 23-25 ft lb.