Notice: PAG oil charge can be identified by locating the label on the rear of A/C compressor.
(220 cc oil charge in the total system for the model year serviced.) Improper quantity
of oil charge in the system will degrade performance.
- Remove the A/C compressor from the vehicle. Refer to
Air Conditioning Compressor Replacement
.
Important: During the oil removal procedure, the condition of the oil should be evaluated.
Compressor oil never breaks down unless something is wrong with the compressor or
A/C system. If one or more of the following conditions exist, replace the compressor
and receiver-dehydrator.
• | The color of the oil is dark brown or black |
• | There is a presence of foreign substances, metal fillings, etc. in the
oil |
• | If the receiver-dehydrator is not replaced damage to A/C compressor will occur |
- Drain the oil into a clean container.
2.1. | Position the A/C compressor to drain from the high side port first. |
2.2. | Move the A/C compressor to different positions to remove all the oil possible. |
2.3. | Turn the A/C compressor over to drain the oil from the low side port. |
2.4. | Rotate the A/C compressor drive plate in both directions to remove the
oil from the A/C compressor chambers. |
2.5. | Stop the oil draining when the oil coming from the low and high side ports
becomes only drops. |
2.6. | Measure and record oil removed from A/C compressor. |
2.7. | Discard the removed oil. |
- Place a new A/C compressor on a clean work bench
with the high and low side ports in an upright position.
- With the A/C compressor high and low side ports in an upright position,
slowly remove the high side cap retaining bolt to release the nitrogen (N2) charge.
- Remove the high and low side caps. Install high and low side caps on the
A/C compressor removed from vehicle, to prevent any oil from leaking out when the
A/C compressor is being shipped.
Important: The oil drained from the new A/C compressor can be installed if drained into
a clean, dry container.
- Drain the oil from the new A/C compressor into a clean, dry container.
6.1. | Position the A/C compressor to drain from the high side port first. |
6.2. | Move the A/C compressor to different positions to remove all the oil possible. |
6.3. | Turn the A/C compressor over to drain the oil from the low side port. |
6.4. | Rotate the A/C compressor drive plate in both directions to remove the
oil from the A/C compressor chambers. |
6.5. | Stop oil draining when the oil coming from the low and high side ports
becomes only drops. |
- Add the recorded amount of oil drained from the removed A/C compressor
measurement amount was obtained in step 2.6, and the amount of oil lost during the
recovery process to the new A/C compressor.
- Install A/C compressor into vehicle. Refer to
Air Conditioning Compressor Replacement
.