Air Conditioning Compressor Replacement (HP2)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Air Conditioning Compressor Replacement (HP2)

Courtesy 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 Disable hybrid high voltage system. Refer to High Voltage Disabling and High Voltage Enabling . Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (Non HP2) or Refrigerant Recovery and Recharging (HP2) . Remove the air cleaner. Refer to Air Cleaner Assembly Replacement . Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement . Remove the suction hose. Refer to Suction Hose Replacement (W/O C69) or Suction Hose Replacement (W/C69) or Suction Hose Replacement (W/C69-HP2) or Suction Hose Replacement (W/O C69-HP2) Remove the discharge hose. Refer to Discharge Hose Replacement (LY2, LMF, L76 and L92) or Discharge Hose Replacement (HP2) Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the engine shield. Refer to Engine Shield Replacement . Remove the oil pan skid plate. Refer to Oil Pan Skid Plate Replacement (2500/3500 with RPO NZZ) or Oil Pan Skid Plate Replacement (1500 with RPO NZZ) . Remove the compressor mounting bracket. Refer to Compressor Mounting Bracket Replacement (Non HP2) or Compressor Mounting Bracket Replacement (HP2)
1	Air Compressor Cable Bolt (Qty: 2) CAUTION: High Voltage (HV) cables should never be removed from the mounting block. Removal of the individual HV cable from the mounting block may result in HV cable and/or component damage from improper: Cable sealing Electrical shielding Terminal position assurance NOTE: Refer to Fastener Notice . Tighten: 9 N.m (80 lb in)
2	A/C Compressor Cable Mounting Bolt (Qty: 2) Tighten: 9 N.m (80 lb in)
3	A/C Compressor Cable
4	A/C Compressor Seal Procedure: Remove and discard the seal.
5	Air Compressor Bolt (Qty: 3) Tighten: 50 N.m (37 lb ft)
6	A/C Compressor Procedure Disconnect electrical connector from compressor. Insert bottom compressor bolts into compressor before installing compressor to vehicle.