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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Discharge Hose Replacement (HP2)

Discharge Hose Replacement (HP2)

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Fig 1: Discharge Hose Replacement (HP2)
GM1971697Courtesy of GENERAL MOTORS CORP.
Callout Component Name
WARNING: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
  • Identify how to disable high voltage.
  • Identify how to test for the presence of high voltage.
  • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.

Failure to follow the procedures exactly as written may result in serious injury or death.

Preliminary Procedures

  1. Disable the hybrid high voltage system. Refer to High Voltage Disabling .
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (HP2)  and High Voltage Enabling .
  3. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement .
  4. Remove air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  5. Remove the radiator air upper baffle. Refer to Radiator Air Upper Baffle and Deflector Replacement (Yukon) or Radiator Air Upper Baffle and Deflector Replacement (Cadillac) .
  6. Remove the radiator side shield.
  7. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  8. Remove the front wheelhouse liner right side. Refer to Front Wheelhouse Liner Replacement - Right Side
1 Discharge Hose Nut
CAUTION: Refer to Fastener Caution .

Tighten:  16 N.m (12 lb ft)
2 Discharge Hose Bolt

Tighten:  16 N.m (12 lb ft)
3 Discharge Hose

Procedure

  1. Remove and discard sealing washer. Refer to Air Conditioning System Seal Replacement .
  2. Disconnect the electrical connector.
  3. Enable the hybrid high voltage system. Refer to High Voltage Enabling .
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