my Honda Civic 9th Generation (2012-2015) AC is not blowing cold air, how do I fix it?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface, and the engine is turned off.
• Disconnect the negative terminal of the battery for safety.

2. Recharge the AC System

• Tools Required: Manifold gauge set, refrigerant canister, safety goggles, gloves.
• Connect the manifold gauge set to the AC service ports (high and low).
• Check the pressure readings; if low, proceed to recharge the system.
• Attach the refrigerant canister to the low-pressure side and open the valve on the canister to allow refrigerant into the system.
• Monitor the pressure and refill as needed until proper levels are reached (refer to the vehicle’s specifications).

3. Replace AC Compressor (if necessary)

• Tools Required: Socket set, wrench set, AC compressor replacement part.
• Disconnect the refrigerant lines from the AC compressor, using caution to avoid refrigerant release.
• Unbolt and remove the AC compressor from its mounting.
• Install the new AC compressor by reversing the removal process, ensuring all bolts are torqued to manufacturer specifications.
• Reconnect the refrigerant lines and ensure they are secure.

4. Replace Cabin Air Filter

• Tools Required: None specific, but may need a screwdriver.
• Locate the cabin air filter access panel (usually under the dashboard).
• Remove the panel to access the filter.
• Pull out the old cabin air filter and replace it with a new one, ensuring it is oriented correctly.
• Reinstall the access panel.

5. Final Checks

• Reconnect the negative terminal of the battery.
• Start the vehicle and turn on the AC to the maximum setting.
• Monitor the operation of the AC system to ensure it is blowing cold air.