One of the worst moments for a vehicle owner is when an unusual noise begins to emanate from the engine bay. Lately, on a select number of GM vehicles, including the GMC Sierra 1500, a whining noise ...
Viewer-submitted questions for The Car Doctor: Q: Our 2011 Volvo XC70 has been showing the check engine light on and off for months. I took it to a local shop, and they changed the spark plugs.