Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Installation Procedure
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Compressor Mounting & Stud
    GM296274Courtesy of GENERAL MOTORS CORP.
  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.
  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 ReplacementΒ .
  7. Fig 2: Accumulator, Retaining Bolt & Compressor Hose Assembly
    GM95632Courtesy of GENERAL MOTORS CORP.
  8. Connect the compressor hose to the accumulator.
  9. NOTE: Refer to Fastener Notice in Cautions and Notices.
  10. Install the compressor hose assembly to accumulator retaining bolt.

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

  11. Fig 3: Lower Compressor Mounting & Bolts
    GM296278Courtesy of GENERAL MOTORS CORP.
  12. Install the lower compressor mounting bolts.
  13. Raise and support the vehicle.
  14. Remove the cap or tape from the compressor hose assembly and the condenser.
  15. Install a new O-ring to the compressor hose assembly. Refer to O-Ring ReplacementΒ .
  16. Fig 4: Condenser Compressor Hose Assembly & Condenser
    GM82073Courtesy of GENERAL MOTORS CORP.
  17. Connect the compressor hose assembly to the condenser.
  18. Fig 5: Disassembling/Reassembling A/C Line Fittings
    GM297225Courtesy of GENERAL MOTORS CORP.
  19. Using a back-up wrench on the condenser fitting (2), secure the compressor hose assembly fitting (1) to the condenser.

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

  20. Lower the vehicle.
  21. Fig 6: Compressor Mounting & Stud
    GM296274Courtesy of GENERAL MOTORS CORP.
  22. Tighten the compressor mounting stud.

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

  23. Install the compressor mounting nut.
  24. IMPORTANT: Tighten the compressor mounting bolts in the following sequence:
    1. Front upper
    2. Front lower
    3. Rear lower
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:

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