Code readers are diagnostic tools that every car owner should consider owning. Having one of these is as important as carrying a spare tire or a fire extinguisher in the trunk. Back in the day, before ...

The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Since the mandate of the OBD-II port in 1996, auto mechanics have accessed vital information about your ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The check-engine light suddenly appearing on your dashboard is enough to dampen any drive. For the ...