Serpentine Belt Chirp vs. Squeal: Diagnose the Drive System
Use rhythm, load, visual tracking, and engine-off inspection to separate alignment, tension, contamination, pulley, and accessory faults without masking the noise.
Tag pulley alignment
Use rhythm, load, visual tracking, and engine-off inspection to separate alignment, tension, contamination, pulley, and accessory faults without masking the noise.