Compressor HVAC: Service and Repair

AIR CONDITIONING (A/C) COMPRESSOR







CAUTION: If installing a new A/C compressor due to an internal failure of the old unit, carry out the following procedures to remove contamination from the A/C system.
- If A/C flushing equipment is available, carry out flushing of the air conditioning system prior to installing a new air conditioning compressor.
- If A/C flushing equipment is not available, carry out filtering of the air conditioning system after a new air conditioning compressor is installed.
- Install a new evaporator core orifice.
- Install a new passenger zone valve.
- Install a new battery zone valve.
- Install a new thermostatic expansion valve and filter.
- Install a new suction accumulator.

1. With the vehicle in NEUTRAL, position it on a hoist.
2. Recover the refrigerant.
3. Remove the drive belt.
4. Remove the compressor manifold and tube assembly bolt and position the A/C manifold and tube assembly aside.
- Discard the O-rings.
- To install, tighten to 21 Nm (15 lb-ft).

5. Disconnect the A/C compressor electrical connector.
6. Remove the 4 A/C compressor mounting bolts and the A/C compressor.
- To install, tighten to 25 Nm (18 lb-ft).

7. NOTE: New O-ring seals, lubricated in clean mineral oil, must be installed before reconnecting any A/C fitting which has been disconnected.

To install, reverse the removal procedure.
1 If not filtering the A/C system, lubricate the refrigerant system with the correct amount of clean PAG oil.
2 Evacuate, leak test and charge the refrigerant system.