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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 870 (Engine Mechanical) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Air Injection Check Valve Installation

Air Injection Check Valve Installation

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install air injection check valve pipe adapters, rear.

    Tighten 

    Tighten the air injection check valve pipe adapters to 30 N.m (22 lb ft).

    Fig 1: Installing Rear Air Injection Check Valve Pipe Adapters
    G01500864Courtesy of GENERAL MOTORS CORP.
  2. Install air injection check valve pipe adapters, front.

    Tighten 

    Tighten the air injection check valve pipe adapters to 30 N.m (22 lb ft).

    Fig 2: Installing Front Air Injection Check Valve Pipe Adapters
    G01500865Courtesy of GENERAL MOTORS CORP.
  3. Install air injection check valve rear bracket and nuts.

    Tighten 

    Tighten the air injection check valve rear bracket nuts to 25 N.m (18 lb ft).

    Fig 3: Installing Air Injection Check Valve Rear Bracket
    G01500866Courtesy of GENERAL MOTORS CORP.
  4. Install air injection check valve front bracket, bolt and nut.

    Tighten 

    Tighten the air injection check valve front bracket bolt and nut to 25 N.m (18 lb ft).

    Fig 4: Installing Air Injection Check Valve Front Bracket
    G01500867Courtesy of GENERAL MOTORS CORP.
  5. Install air injection check valve rear.

    Tighten 

    Tighten the air injection check valve to 20 N.m (15 lb ft).

  6. Install air injection check valve nut, rear.

    Tighten 

    Tighten the air injection check valve nut rear to 10 N.m (89 lb in).

    Fig 5: Installing Rear Air Injection Check Valve
    G01500868Courtesy of GENERAL MOTORS CORP.
  7. Install air injection check valve front.

    Tighten 

    Tighten the air injection check valve front to 20 N.m (15 lb ft).

  8. Install air injection check valve nut front.

    Tighten 

    Tighten the air injection check valve nut to 10 N.m (89 lb in).

    Fig 6: Installing Front Air Injection Check Valve
    G01500869Courtesy of GENERAL MOTORS CORP.
  9. Install air injection solenoid switch and bolt.

    Tighten 

    Tighten the air injection solenoid switch bolt to 10 N.m (89 lb in).

    Fig 7: Installing Air Injection Solenoid Switch
    G01500870Courtesy of GENERAL MOTORS CORP.
  10. Install air injection check valve pipe, clamps, and bolt.

    Tighten 

    Tighten the air injection check valve pipe bolt to 10 N.m (89 lb in).

    Fig 8: Installing Air Injection Check Valve Pipe
    G01500871Courtesy of GENERAL MOTORS CORP.
  11. Install air injection vacuum hose.
    Fig 9: Installing Air Injection Vacuum Hose
    G01500872Courtesy of GENERAL MOTORS CORP.
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