Most drivers probably don't know what a transmission valve body is, but it's an important part of your car that needs to stay ...

A throttle body is an electronically or mechanically controlled butterfly valve that controls the amount of air entering the ...

The throttle position sensor monitors how far open the throttle valve (or blade) is open, which is determined by how far down the accelerator pedal has been pushed. The throttle position controls ...

If you’ve never seen or heard a runaway diesel engine ... By peeling off the valve covers, you can see the fuel injector rack—which normally modulates throttle input via the governor through ...