What Causes the Buick Regal's Air Conditioning to Not Cool?
2 Answers
Buick Regal's air conditioning not cooling may be caused by insufficient refrigerant, excessive impurities in the air conditioning refrigerant and compressor oil, a loose compressor drive belt, damaged air conditioning flaps, malfunctioning air conditioning compressor, throttle valve or expansion valve, or water in the pipelines. The car's air conditioning refrigeration system includes a dryer tank, whose main function is to absorb moisture from the refrigerant and prevent excessive moisture from reducing cooling efficiency. When the desiccant in the dryer tank becomes saturated, it can no longer filter out moisture. As the refrigerant passes through the expansion valve's throttle orifice, the drop in pressure and temperature causes the water in the refrigerant to freeze in the small orifice, leading to restricted refrigerant flow, increased resistance, or complete blockage. The Buick Regal's body dimensions are 4902 mm in length, 1863 mm in width, and 1456 mm in height, with a wheelbase of 2829 mm.
I've been driving a Buick Regal for five years when suddenly the air conditioning stopped cooling. It was so hot I almost passed out. The mechanic found all the refrigerant had leaked out, probably due to aging pipes with cracks. Later I learned the compressor might be faulty - that thing's expensive! When it doesn't work, the fan just blows hot air. Clogged filters are also common, especially in summer when dust accumulates quickly, reducing cooling efficiency. Now before each season change, I clean the AC system first to avoid suffering again. Early detection means smaller repairs - spending a little now saves big trouble later. Repair shops can also help diagnose issues by checking pressure levels.
