ORLANDO, Fla. – If you’ve ever seen a police car with its lights “glowing,” but not flashing or accompanied by a siren, ...

If you don’t, you risk more severe damage to your car, and those repairs won’t come cheap. A solid check engine light isn’t a good sign either, but it’s less drastic than a blinking one.

A flashing light, however ... Since the 1996 model year, cars and light trucks have had what is known as an “OBD2” (sometimes written as “OBD II”) system, which stands for onboard ...

The manual advises the light should turn off once the car reaches a speed just above idle. Should it start flashing while traveling above 20 mph, it means the battery isn't being charged.

Back in the day, though, things like brake lights and indicators were all done with analog electronics. If your classic car needs a good ... to create the desired flashing behavior.

In many cases, however, this isn't likely to be a major issue, especially if you don't notice any changes in your car's overall performance. Blinking and turning off of a check engine light can be ...