How to Avoid Getting Ripped Off for Auto Repairs

Kiplinger reports:

You can diagnose what's wrong before you hit the shop by using the CarMD tool ($99; www.carmd.com). Just plug the hand-held device into your car (every model after 1996 has a standard connection port) and it reads the car's computer codes. You can then plug it into your computer for a full report of what problem the codes indicate, the most likely fix, and what labor and parts for the repair cost in your area.

An article well worth your time.