David Sturtz, cofounder and CEO of RepairPal.com, an auto-repair information Web site with more than a million visitors each month. RepairPal has a team of 26 expert ASE-certified technician advisers with a combined 500 years of professional experience. The site provides parts-and-labor-cost estimates for repair work, customer reviews of repair shops and other auto information.
Even if you know nothing about cars An auto mechanic tells you that the clunking sound you hear means that…