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thought this might help pulled it off alldata
* Tools Required
* J 23600-B Torque Angle Meter
1. Remove the upper intake manifold. Refer to Intake Manifold Replacement (Upper) or Intake Manifold Replacement (Lower).
2. Remove the fuel lines at the fuel rail and the bracket.
3. Remove the fuel rail with injectors. Refer to Fuel Rail Assembly Replacement in Powertrain Management.
4. Remove the power steering mounting bolts. Support the pump aside. Refer to Power Steering Pump Replacement in Steering and Suspensions.
5. Remove the inlet cooling pipe from the coolant outlet housing.
6. Remove the heater by-pass at the coolant pump and the cylinder head.
7 Remove the radiator hose at the heater outlet housing.
8. Remove the water outlet housing. Refer to Water Outlet Housing Replacement in Cooling System.
9. Remove both of the valve rocker covers. Refer to Valve Rocker Arm Cover Replacement (Left) or Valve Rocker Arm Cover Replacement (Right). Important: Retain the washers in the same orientation on the center bolts.
10. Remove the lower intake manifold bolts.
11. Remove the lower intake manifold.
12. Loosen the rocker arms. Important: Keep the pushrods in order. The pushrods must be installed in the original position.
13. Remove the pushrods.
14. Remove the intake gasket.
15. Inspect the flatness of the inlet flanges.
16. Clean the following items:
o Gasket material from the mating surfaces
o Excess RTV sealant from the front and the rear ridges of the cylinder
o The block
o Sealing surfaces Use degreaser in order to clean the sealing surfaces.
Installation Procedure
1. Place a 2 - 3 mm bead of GM RTV sealer P/N 12345739, or the equivalent on each ridge where the front and the rear of the intake manifold contact the block.
2. Install the intake manifold gasket.
3. Install the pushrods. Notice: Refer to Fastener Notice in Service Precautions.
4. Install the rocker arm bolts. Tighten Tighten the bolts to 19 Nm (14 ft. lbs.) + 30 degrees.
4.1. Install the pushrods in their original location.
4.2. Coat the ends of the pushrods with prelube GM P/N 1052356, or the equivalent.
4.3. Intake pushrods are 144 mm (5.75 inch) .
4.4. Exhaust pushrods are 152.5 mm (6.0 inch) .
4.5. Ensure that the pushrods seat in the lifter.
5. Install the lower intake manifold. Notice: Failure to tighten vertical bolts before the diagonal bolts may cause an oil leak.
6. Install NEW lower intake manifold bolts. Revised Updated Torque Specification, Bulletin #vss20030024 The torque specification is a 2-step process; tighten the vertical lower intake manifold bolts (the four middle ones) to 7 Nm (62 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 7 Nm (62 lb in). Tighten the vertical lower intake manifold bolts (the four middle ones) to 13 Nm (115 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 25 Nm (18 lb ft).
7. Install the valve rocker covers. Refer to Valve Rocker Arm Cover Replacement (Left) or Valve Rocker Arm Cover Replacement (Right).
8. Install the water outlet housing. Refer to Water Outlet Housing Replacement in Cooling System.
9. Install the radiator hose to the thermostat housing.
10. Install the heater inlet pipe to the thermostat housing.
11. Install the fuel lines to the fuel rail and the bracket.
12. Install the fuel rail with injectors. Refer to Fuel Rail Assembly Replacement in Powertrain Management.
13. Install the upper intake manifold. Refer to Intake Manifold Replacement (Upper) or Intake Manifold Replacement (Lower).
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