We may receive a commission on purchases made from links. Over the last century or so, the auto industry has changed in a myriad of incredible ways. It's mind-boggling to think of just how far we've ...

I own a 14 year old Ford Galaxy 1.9 TDI with 170,000 miles on the clock. The car has run well, until recently. The glow plug/engine management light has started coming on and now flashes on and off.

There are three things a gasoline engine needs: air, fuel and spark. The spark plug ignites the air/fuel mixture, producing the combustion that powers the engine. Despite the fact that spark plugs ...

Traditional gasoline engines have spark plugs, but diesel engines have something a little different, called glow plugs. How ...