Intake Manifold

Fig. 3 Intake manifold installation:

1. Disconnect battery ground cable. Drain cooling system.
2. Remove rocker arm covers.
3. Remove intake duct.
4. Remove distributor. Mark location of distributor on engine and rotor on distributor body.
5. Disconnect throttle body from upper plenum.
6. Remove radiator hose and radiator fill inlet.
7. Disconnect heater hoses and the pipe to throttle body.
8. Disconnect wiring harness.
9. Remove heater hoses and disconnect vacuum hoses.
10. Remove brake booster pipe and bracket.
11. Disconnect EGR pipe.
12. Remove upper manifold plenum and gaskets, Fig. 3.
13. Remove intermediate intake manifold and gasket.
14. Remove lower intake manifold and gaskets.
15. Reverse procedure to install. Refer to Fig. 3 for torque sequence. Torque lower intake manifold bolts to 19 ft. lbs. Torque intermediate intake manifold bolts to 15 ft. lbs. Torque upper manifold plenum bolts to 19 ft. lbs.