"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Modern cars are technological marvels, and understanding what’s happening under the hood has never been ...

A journalist's experience with a check engine light and an outrageous $250 diagnostic fee reveals how a simple, affordable tool can save you from questionable auto shop practices and hundreds of ...

Sponsored Content. We may receive a commission on purchases made from links. Let's replay a scenario that is likely rather well known among the automotive inclined. You are driving your 2005 Cadillac ...