Compressor HVAC: Service and Repair

Compressor Assembly Removal and Installation

Removal

1. Run engine at idle with A/C ON for 10 minutes.
2. Disconnect negative (-) cable at battery.
3. Recover refrigerant from refrigeration system using recovery and recycling equipment.

NOTE: The amount of compressor oil at removed must be measured and the same amount must be poured when installing the compressor.

4. Remove P/S pump. Refer to P/S Pump Removal and Installation.
5. Remove P/S oil tank, P/S high pressure hose and pipe. Refer to P/S Pump Components.
6. Disconnect magnet clutch connector.




7. Disconnect suction hose (1) and discharge hose (2) from compressor.

NOTE: Cap open fitting immediately to keep moisture out of system.




8. Remove compressor (1) from its mount (2).

NOTE: If compressor assembly is replaced with one, drain oil from compressor. Then, measure its amount.

Installation

CAUTION: Be sure to use HFC-134a (R-134a) compressor oil.

Reverse removal procedure to install compressor assembly noting the following instructions.




- If compressor was replaced, pour new compressor oil with the same amount as that drained from compressor.
Refer to Replenishing Compressor Oil in Precautions on Servicing A/C System.
- Install P/S pump referring to P/S Pump Removal and Installation.
- Evacuate and charge system referring to Evacuating of A/C System and Procedure of Charging in Operation Procedure for Charging A/C with Refrigerant.