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HOMESERVICE MANUALSCHEVROLET2011TAHOE BASE, 5.3 0, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 490 (HEATING, VENTILATION AND AIR CONDITIONING)REPAIR INSTRUCTIONSCOMPRESSOR HOSE ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE
2011 Chevrolet Tahoe Base, 5.3 0, 4WD

Installation Procedure

2011 Chevrolet Tahoe Base, 5.3 0, 4WDSECTION Installation Procedure
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. Install the compressor hose assembly into position in the vehicle.
  2. Install the compressor into position on the compressor mounting bracket.
  3. Install the compressor mounting stud to the engine block.
  4. Install the compressor upper mounting bolt.
    Fig 1: Installing Compressor Mounting Nut
    G01418539Courtesy of GENERAL MOTORS CORP.
  5. Remove the cap or tape from the compressor hose assembly and the accumulator.
  6. Install the new O-ring to the compressor hose assembly. Refer to O-RING REPLACEMENT  .
  7. Connect the compressor hose to the accumulator.
    NOTE: Refer to FASTENER NOTICE .
  8. Install the compressor hose assembly to accumulator retaining bolt.

    Tighten 

    Tighten the bolt to 20 N.m (15 lb ft).

    Fig 2: Installing Compressor Hose Assembly To Accumulator Retaining Bolt
    G01418540Courtesy of GENERAL MOTORS CORP.
  9. Install the lower compressor mounting bolts.
    Fig 3: Installing Lower Compressor Mounting bolts
    G01418541Courtesy of GENERAL MOTORS CORP.
  10. Raise and support the vehicle.
  11. Remove the cap or tape from the compressor hose assembly and the condenser.
  12. Install a new O-ring to the compressor hose assembly. Refer to O-RING REPLACEMENT  .
  13. Connect the compressor hose assembly to the condenser.
    Fig 4: Connecting Compressor Hose Assembly To Condenser
    G01418542Courtesy of GENERAL MOTORS CORP.
  14. Using a back-up wrench on the condenser fitting (2), secure the compressor hose assembly fitting (1) to the condenser.

    Tighten 

    Tighten the fitting to 24 N.m (17 lb ft).

  15. Lower the vehicle.
    Fig 5: Tightening Compressor Hose Assembly Fitting To Condenser
    G01418543Courtesy of GENERAL MOTORS CORP.
  16. Tighten the compressor mounting stud.

    Tighten 

    Tighten the stud to 9 N.m (80 lb in).

  17. Install the compressor mounting nut.
    Fig 6: Installing Compressor Mounting Nut
    G01418544Courtesy of GENERAL MOTORS CORP.

    Important:  Tighten the compressor mounting bolts in the following sequence:

    1. Front upper
    2. Front lower
    3. Rear lower
  18. Tighten the compressor mounting bolts.

    Tighten 

    Tighten the bolts to 40 N.m (30 lb ft).

  19. Tighten the compressor mounting nut.

    Tighten 

    Tighten the nut to 40 N.m (30 lb ft).

    Fig 7: Installing compressor mounting
    G01418545Courtesy of GENERAL MOTORS CORP.
  20. Remove the cap or tape from the compressor hose assembly end and the compressor.
  21. Install the new seal washers to the compressor hose assembly. Refer to SEALING WASHER REPLACEMENT  .
  22. Connect the compressor hose assembly to the compressor.
  23. Install the compressor hose assembly retaining bolt.

    Tighten 

    Tighten the bolt to 26 N.m (19 lb ft).

    Fig 8: Installing Compressor Hose Assembly With Retaining Bolt
    G01418546Courtesy of GENERAL MOTORS CORP.
  24. Connect the compressor clutch electrical connector.
    25. Fig 9: Connecting Compressor Clutch Electrical Connector
    G01418547Courtesy of GENERAL MOTORS CORP.
  25. Install the RH exhaust manifold heat shield.
  26. Install the compressor drive belt. Refer to DRIVE BELT REPLACEMENT-AIR CONDITIONING in Engine Mechanical - 5.7L.
  27. Install the battery heat shield. Refer to BATTERY HEAT SHIELD REPLACEMENT in Engine Electrical.
  28. Recharge the A/C system. Refer to REFRIGERANT RECOVERY AND RECHARGING  .
  29. Leak test the fittings of the component using J 39400-A  .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.