What Causes the Air Conditioning Noise in the Buick New Excelle?
2 Answers
The causes of air conditioning noise in the Buick New Excelle are as follows: 1. Damaged compressor electromagnetic clutch: As a high-speed rotating component, the air conditioning compressor has a relatively high probability of failure, with noise being a common issue. There are many reasons for compressor noise, such as a damaged electromagnetic clutch. 2. Severe internal wear of the compressor: This can also cause noise. There should be a certain gap between the compressor mounting surfaces. If the gap is too large, the impact will increase. If the gap is too small, the electromagnetic clutch will interfere with the compressor mounting surface during operation, which is another common cause of noise.
I've been repairing Buick vehicles for over a decade, and most AC noises aren't serious issues. The most common problem is leaves stuck in the blower fan blades, causing a buzzing sound when the AC is turned on - just remove the glove compartment to clean it. Aging compressor bearings are another frequent cause, especially in older Excelle models that develop squeaking sounds, requiring replacement parts at the shop. Another issue is AC pipe resonance, producing rattling noises while driving, which can be fixed by re-securing the pipes. An often overlooked cause is a dirty cabin air filter - when set to high fan speed, it creates a whistling sound like blowing a whistle, and replacing the filter yourself costs just around 100 RMB. My suggestion is to first turn the fan to maximum for a few minutes when hearing noises - often this will blow out any debris.
