Q: About two years back, my engine began to shudder and lose power at times. My trusted mechanic determined the cause was a defective ignition coil and replaced it. All has been fine until this past ...

Forbes contributors publish independent expert analyses and insights. Jim Gorzelany is a veteran automotive journalist. You’ll usually know when it’s time to take your car, truck or sport-utility ...

Today’s cars, trucks, and SUVs are equipped with onboard diagnostic systems that can detect when a problem occurs and will flash an alert to the driver that a glitch exists. A vehicle’s brakes, ...