The AC belt connects the engine’s crankshaft to the air conditioner and without the AC belt, the air conditioner will not work. In some vehicles, the defrost function may be limited or even non-functioning if the AC belt is broken.
The AC belt is verified to be needing replacement The AC belt tensioner is loosened and the old belt is removed The new AC belt is installed The AC belt tensioner is adjusted to specifications The AC is checked for proper operation
The vehicle’s air conditioner will not run without a properly functioning AC belt. While this isn’t a major issue, it can be rather uncomfortable in warmer climates. The issue becomes more important in the winter if weather necessitates the use of the defrost setting on the heater. Since AC belts are inexpensive and easy to replace, there is no excuse not to replace it before it fails.