Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Drain the cooling system. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2) .
Remove the coolant air bleed pipe bolts/studs (1).
Remove the coolant air bleed pipe (2) with gaskets (3).

Fig 1: Identifying Coolant Air Bleed Pipe And Bolts

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Remove the coolant air bleed pipe cover bolts (1) and covers (2).

Fig 2: View Of Coolant Air Bleed Pipe Cover Bolts & Covers

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Remove the gaskets from the coolant air bleed pipe and covers.

Fig 3: View Of Air Bleed Pipe Sealing Gasket

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Discard the gaskets.
Remove the coolant air bleed hose (1) from the pipe (2).

Fig 4: Coolant Air Bleed Hose & Pipe

Courtesy of GENERAL MOTORS CORP.