my Genesis G70 AC compressor is making noise, what's wrong

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shock.
• Ensure the engine is cool before starting work.

2. Remove the Serpentine Belt

• Loosen the tension on the serpentine belt using a wrench on the tensioner pulley.
• Carefully slide the belt off the AC compressor pulley.
• Inspect the belt for signs of wear or damage; replace if necessary.

3. Remove the AC Compressor

• Disconnect the electrical connector from the AC compressor.
• Use a socket set to remove the mounting bolts securing the compressor.
• Use wrenches to detach the refrigerant lines; capture any escaping refrigerant in compliance with local regulations.
• Carefully remove the AC compressor from the engine bay.

4. Inspect and Replace

• Examine the compressor clutch and bearing for wear.
• If the compressor is damaged, replace it with a new or remanufactured unit.
• If the clutch is the issue, replace the compressor clutch assembly instead.

5. Reinstall the AC Compressor

• Position the new or repaired compressor in place and secure it with mounting bolts to the specified torque (typically 15-20 ft-lbs, consult specific service manual).
• Reattach the refrigerant lines, ensuring to use new O-rings to prevent leaks.
• Reconnect the electrical connector.

6. Reinstall the Serpentine Belt

• Loop the serpentine belt back onto the AC compressor pulley and other pulleys as per the belt routing diagram.
• Reapply tension to the serpentine belt using the tensioner.

7. Recharge the AC System

• Use a refrigerant gauge to fill the AC system with the appropriate amount of refrigerant as specified by the manufacturer.
• Start the engine and run the AC to check for proper operation and noise.