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Home >> Pontiac >> 2002 >> Aztek AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (Unit Repair) >> Repair Instructions >> Air Injection Check Valve Installation

Air Injection Check Valve Installation

  1. Install air injection check valve pipe adapters, rear.

    Tighten 

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

    Fig 1: Installing Air Injection Check Valve Pipe Adapters (Rear)
    G01745700Courtesy 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 ft. lbs).

    Fig 2: Installing Air Injection Check Valve Pipe Adapters (Front)
    G01745701Courtesy 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 ft. lbs).

    Fig 3: Installing Air Injection Check Valve Rear Bracket
    G01745702Courtesy 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 ft. lbs).

    Fig 4: Installing Air Injection Check Valve Front Bracket
    G01745703Courtesy of GENERAL MOTORS CORP.
  5. Install air injection check valve rear.

    Tighten 

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

  6. Install air injection check valve nut, rear.

    Tighten 

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

    Fig 5: Installing Air Injection Check Valve (Rear)
    G01745704Courtesy of GENERAL MOTORS CORP.
  7. Install air injection check valve front.

    Tighten 

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

  8. Install air injection check valve nut front.

    Tighten 

    Tighten the air injection check valve nut to 10 N.m (89 INCH lbs).

    Fig 6: Installing Air Injection Check Valve (Front)
    G01745705Courtesy 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 INCH lbs).

    Fig 7: Installing Air Injection Solenoid Switch
    G01745706Courtesy 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 INCH lbs).

    Fig 8: Installing Air Injection Check Valve Pipe
    G01745707Courtesy of GENERAL MOTORS CORP.
  11. Install air injection vacuum hose.
    Fig 9: Installing Air Injection Vacuum Hose
    G01745708Courtesy of GENERAL MOTORS CORP.
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