Mitsubishi Mirage squeaky belt noise when cold and with AC or heat running on Mitsubishi Mirage

Some Mitsubishi Mirage owners report experiencing a squeaky belt noise, particularly during cold starts or when the AC or heat is running. These noises may be attributed to cold weather impacting the performance of the serpentine belt, which can lead to squealing sounds. Additionally, a worn-out or misaligned serpentine belt is a common cause of these issues. When the AC is activated, some owners notice squeaking, which could indicate a loose or worn serpentine belt, low refrigerant levels, or a failing AC compressor. Proper belt tension is crucial, and a faulty tensioner or incorrect tension can also contribute to the noise. Cold weather can increase engine load, causing the serpentine belt to slip on the pulleys and create a squealing sound. It is essential for owners to address the root cause of the squeaky belt rather than merely applying belt dressing, as this may mask underlying problems that require attention.