why does my Toyota Camry's air conditioning blow hot air

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check Refrigerant Level

• Tools Required: Pressure gauge.
• Connect the pressure gauge to the AC service port.
• Check the low and high-side pressures against manufacturer specifications.
• If low, proceed to recharge the system.

3. Inspect the AC Compressor

• Tools Required: Visual inspection tools (flashlight).
• Locate the AC compressor and check for any physical damage.
• Start the engine and turn on the AC to see if the compressor clutch engages.
• If it doesn’t engage, check the electrical connections and the AC relay.

4. Replace Cabin Air Filter

• Tools Required: Screwdriver or pliers (if needed for access).
• Locate the cabin air filter housing (usually behind the glove box).
• Remove the old filter and replace it with a new one.
• Ensure the filter is installed in the correct orientation.

5. Recharge the AC System

• Tools Required: AC recharge kit.
• If refrigerant level is low, follow the instructions on the recharge kit to add refrigerant.
• Monitor the pressures during the refill process to avoid overcharging.

6. Repair or Replace AC Components (if needed)

• Depending on diagnostics, replace any faulty components such as the compressor, expansion valve, or condenser.
• Follow specific manufacturer instructions for the replacement procedure and torque specifications.