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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 228 (Engine Controls - Removal & Installation, Overhaul) >> Emission Systems & Sub-Systems >> Secondary Air Injection Check Valve/Pipe >> Removal & Installation (Bank 1)

Removal & Installation (Bank 1)

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Bank 1 is left side of engine. Remove the check valve hose clamp. See Fig 1. Disconnect the AIR hose from the check valve. Unscrew the check valve from the AIR pipe. Remove the left AIR pipe from the manifold.
  2. Before replacing a check valve, test the valve for proper operation. Install a vacuum pump to the nipple side of the check valve, on the AIR pump side. Pump the vacuum pump to 10 in. Hg and observe the gauge. If the vacuum bleeds down to zero within 5 seconds, replace the check valve.
  3. To install, reverse removal procedure. Tighten AIR check valve and AIR pipe to specification. See TORQUE SPECIFICATIONS .
Fig 1: Removing Secondary AIR Check Valve/Pipe (Bank 1)
G00209116Courtesy of GENERAL MOTORS CORP.