Download 1. Release fuel pressure. See FUEL PRESSURE RELEASE. Drain coolant. Disconnect all necessary coolant hoses, electrical connectors, vacuum hoses, fuel lines and control cables. 2. Remove generator and mounting bracket. Remove intake air duct hose. Remove upper radiator hose. Remove front Exhaust Gas Recycle (EGR) hose from intake manifold. Remove 2 intake manifold plenum supports between intake manifold and engine block. See Fig. 6. 3. Remove intake manifold bolts and remove intake manifold. See Fig. 5. To install, reverse removal procedure. Tighten intake manifold bolts to specification in sequence. See Fig. 7 and Fig. 8 . See TORQUE SPECIFICATIONS.