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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 309 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Air Conditioning Accumulator Replacement (HP2)

Air Conditioning Accumulator Replacement (HP2)

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Fig 1: Air Conditioning Accumulator (HP2)
GM1970024Courtesy of GENERAL MOTORS CORP.
Air Conditioning Accumulator Replacement (HP2)

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) , Refrigerant Recovery and Recharging (HP2) .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
  3. Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side
  4. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement .
  5. Remove air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  6. Remove the suction hose. Refer to Suction Hose Replacement (W/C69) , Suction Hose Replacement (W/O C69-HP2) , Suction Hose Replacement (W/O C69) , Suction Hose Replacement (W/C69-HP2) .
  7. Disconnect electrical connector from A/C low pressure switch.
1 Accumulator Mounting Bracket Nut
CAUTION:

Refer to Fastener Caution .


TIP:  Discard all of the used sealing washers.
Tighten 
16 N.m (12 lb in)
2 Accumulator Nut
TIP:  Discard all of the used sealing washers.
Tighten 
16 N.m (12 lb in)
3 Accumulator
TIP:  Remove accumulator through wheelhouse opening.
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