MyVans Your Vehicle Solution
Driving a car on a hot and humid day can be quite uncomfortable, especially if your car’s AC is blowing hot air. This can happen due to various reasons, such as low refrigerant levels, faulty compressor, or clogged air filters. If you’re facing this issue, don’t worry, as you can fix it on your own by following a few simple steps.
Step 1: Check the Refrigerant Levels
The first and most common reason for a car’s AC blowing hot air is low refrigerant levels. To check the refrigerant levels, locate the low-pressure port, which is usually located on the larger of the two AC lines. Remove the cap and attach a pressure gauge to the port. If the reading is below the recommended level, you need to recharge the AC system with refrigerant.
Step 2: Check the Compressor
If the refrigerant levels are fine, the next step is to check the compressor. Start the engine and turn on the AC. Check if the compressor is engaging by observing the center of the pulley. If it’s not engaging, there could be a problem with the compressor or the electrical system. In such a case, it’s recommended to take your car to a professional mechanic.
Step 3: Check the Air Filters
Clogged air filters can also cause the car’s AC to blow hot air. Open the hood and locate the air filter housing. Remove the filter and check if it’s dirty or clogged. If it is, replace it with a new one. This will improve airflow and help keep the AC system cool.
Step 4: Check for Leaks
If the AC system is still blowing hot air, there could be a leak in the system. Use a UV leak detection kit to locate the leak. Once you’ve found the leak, repair it and recharge the system with refrigerant.
Step 5: Check the AC Clutch
The AC clutch is responsible for engaging and disengaging the compressor. If it’s not working properly, the AC system won’t cool. Check the clutch by observing the magnetic field around it while the engine is running. If it’s not engaging, there could be a problem with the clutch or the electrical system.
Step 6: Check the Electric Fan
The electric fan helps to cool the condenser, which is responsible for cooling the refrigerant. If the fan is not working, the AC system won’t cool properly. Check the fan by observing if it’s turning on when the AC is turned on. If it’s not, there could be a problem with the fan or the electrical system.
Step 7: Check the Thermostat
If the AC system is still not cooling, check the thermostat. The thermostat regulates the temperature in the car’s cabin. If it’s not working properly, the AC system won’t cool. Check the thermostat by observing if it’s turning on and off when the AC is turned on and off.
Step 8: Check the AC Control Module
If all the above steps fail, there could be a problem with the AC control module. The AC control module is responsible for controlling the AC system. If it’s not working properly, the AC system won’t cool. In such a case, it’s recommended to take your car to a professional mechanic.
Conclusion
By following these simple steps, you can fix the AC in your car blowing hot air and enjoy a cool and comfortable ride. However, if you’re not confident about fixing the issue on your own, it’s recommended to take your car to a professional mechanic to avoid any further damage or complications.
