One of the questions I am most frequently asked is about idle speed control; idling is too fast, too slow or erratic. An engine might idle too fast because of an intake air leak, but it can be due to ...

Cleaning the idle air control valve (IACV) on your vehicle periodically helps keep carbon and other particles from building up on the valve, which can negatively affect the operation of the car.

While it’s normal for a car to be idling high when it’s first started, if the idle doesn’t drop to normal after a minute or two, something’s probably wrong. That initial temporary high idle, which is ...

In more ways than one, how your vehicle’s engine idles (i.e. how smooth and efficiently your vehicle’s engine works when the car is stationary and not under any systemic pressure, like the ...