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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 359 (Engine Controls - Removal & Installation, Overhaul) >> Emission Systems & Sub-Systems >> Secondary Air Injection Check Valve/Pipe >> Removal & Installation (Bank 2)

Removal & Installation (Bank 2)

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 2 is right side of engine. Remove the intake manifold. See appropriate article in ENGINES. Remove the clamps and AIR hoses from the AIR system right pipe. Remove the AIR pipe bolt from the cylinder head. See Fig 1. Remove the right AIR pipe from the manifold. Unscrew the check valve from the AIR pipe.
  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 Pipe (Bank 2)
G00209117Courtesy of GENERAL MOTORS CORP.
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