Serpentine belt chirp: notes for public meetup-friendly jobs

# Serpentine belt chirp: notes for public meetup-friendly jobs Warning lights are data, not destiny—interpretation matters more than the first code read. We start with **symptom timing** (cold vs hot, idle vs cruise) and confirm **powertrain behavior** before quoting labor. Message with **year, make, model, mileage**, and **when the symptom happens**—it saves time on arrival. _Educational overview only—not a remote diagnosis of your vehicle. Estimates depend on inspection and your approval._