How To Fix GMC Air-Conditioning Problems

The air-conditioning system in your GMC comprises many parts that work together to blow cool air so you can enjoy your commute even when it is very hot outside. If the system suddenly stops blowing cool air, it is usually as a result of one of the following reasons:

Electrical faults in the system: Sometimes, when your AC stops blowing cool air, the culprit is an electrical fault that calls for a full reset of the system. A factory-approved full reset sequence is the best quick fix for electrical malfunction in your GMC AC system. The full reset sequence is as follows:

• With your key in the ignition and set to 'on', press the 'auto' button if you have an automatic AC system or set your speed to two/three if your GMC comes with a manual AC system.
• Switch off the ignition and disconnect your car battery.
• Wait a few minutes, and reconnect the battery before turning your car back on for two minutes.
• Switch off the ignition again and wait twenty seconds before turning your car on and testing the AC controls.

If the reset is successful, it should fix all electrical glitches in the air-conditioning system and blow cool air.

Low pressure in the refrigerant: Low pressure in the refrigerant could indicate a leak in the compressor, or you urgently need a freon charge. You will need a factory-trained technician to take a look and confirm which is the issue.

A malfunction of the drive belt: This can cause the air-conditioning system in your GMC to stop blowing cool air. Drive belts play a critical role in the proper functioning of your GMC's engine, and if an electrical sensor detects a slippage or malfunction of the drive belt, it'll automatically disable the AC system, especially if you drive a newer model GMC. The solution is to get a factory-trained technician to check it out.

Compressor malfunction: The compressor in the air-conditioning system in your GMC is usually under immense pressure and can get very hot when in use for extended periods. These factors, over time, lead to the wear and tear of its internal components and, ultimately, compressor failure. In the event of a compressor failure, the solution is to have the compressor replaced by a factory-trained technician.

Faulty radiator fan:  a faulty radiator fan will not only cause your AC to blow hot air, but it will also cause the engine of your GMC to overheat if it runs for too long. You can check for a faulty radiator fan by popping the hood of your GMC and switching the engine on, and observing for five minutes. If the fan does not come on, contact your dealership immediately.

Solve all your car troubles at GMC Danver

If you ever experience car trouble while driving your GMC and are in the Danver area, our GMC Danver motor dealership is your best bet. For over fifty years, we have provided top-notch services to all its customers. Our team of factory-trained technicians is the best, and you can always rely on us to solve all your car trouble. Contact us now.