C 1500 Truck 2WD V6-4.3L VIN W (2001)
36. Remove the Engine Coolant Temperature (ECT) sensor wire connector (if equipped) from the engine wiring harness bracket.
37. Remove the lower intake manifold bolts.
Important: The intake manifold may be removed as an assembly. Do not remove the specific intake manifold components unless component service
is required.
Do not allow dirt or debris to enter the fuel system. Ensure that the ends of the fuel system are properly sealed.
Do not disassemble the Central Sequential Fuel Injection (SFI) unit, unless service is required.
38. Remove the intake manifold assembly.
39. Remove and discard the lower intake manifold gaskets.
Important: Do not immerse the assembled intake manifold in cleaning solvent.
40. Clean the lower intake manifold in cleaning solvent.
41. Dry the lower intake manifold with compressed air.
42. Inspect the lower intake manifold for the following:
^
Damage to the gasket sealing surfaces (1, 2, 3).
^
Restricted Exhaust Gas Recirculation (EGR) system passages (4)
^
Restricted cooling system passages (5)
^
Cracks or damage
^
Damage to the threaded bolt holes
43. If the intake manifold requires replacement refer to Intake Manifold Disassemble and Intake Manifold Assemble.
