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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1443 (HVAC SYSTEMS - GENERAL SERVICING)REPAIR INSTRUCTIONSCOMPRESSOR HOSE ASSEMBLY REPLACEMENT (LL8)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
    2. Fig 1: View Of Compressor Hose Assembly
    GM735911Courtesy of GENERAL MOTORS CORP.
  2. Remove the compressor hose assembly nut (3).
  3. Remove the compressor hose assembly from the compressor (4).
  4. Remove the sealing washers.
  5. Remove the compressor suction hose nut from the accumulator.
  6. Remove the compressor suction hose from the accumulator.
  7. Remove the O-ring seal.
  8. Remove the bolt from the lift bracket.
  9. Remove the nut from the engine stud.
    10. Fig 2: Compressor Discharge Hose From Condenser
    GM735782Courtesy of GENERAL MOTORS CORP.
  10. Remove the compressor discharge hose (2) from the condenser (4).
  11. Remove the nut from compressor hose connection in driver wheel opening.
  12. Remove the O-ring seals.
  13. Cap or plug all of the open connections.
RENDER: 1.0x

NO RELATED

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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.