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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 >> Suction Hose Replacement (W/C69-HP2)

Suction Hose Replacement (W/C69-HP2)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 GMC Yukon XL, 2010 GMC Yukon, 2010 Chevrolet Tahoe, 2010 Chevrolet Suburban, and 2010 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Suction Hose Replacement (W/C69-HP2)
GM1965594Courtesy 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. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (Non-HP2) .
  2. Remove the upper intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement
  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. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Remove the front wheelhouse liner right side. Refer to Front Wheelhouse Liner Replacement - Right Side
1 Suction Hose Nut
CAUTION: Refer to Fastener Caution .

Tighten:  9 N.m (80 lb in)
2 Evaporator Tube to Rear A/C Nut

Tighten:  9 N.m (80 lb in)
3 Suction Hose to Rear A/C Nut

Tighten:  9 N.m (80 lb in)
4 Suction Hose
Procedure: 
Remove and discard sealing washer. Refer to Air Conditioning System Seal Replacement .
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