
Ms. A investigates why a car's AC isn't blowing cold, explains how the system works, and demonstrates how professionals diagnose and repair it.

Ms. A tracks down why an engine is overheating and explains how a vehicle's cooling system keeps an engine running at the right temperature.

Ms. A tracks down what's secretly draining a car's battery while it's parked and shows how mechanics find an electrical draw.

Ms. A breaks down what a check engine light actually means and explains how mechanics use diagnostic codes and testing to find the real problem.