The idle air control valve (IACV) is a device attached to the throttle body that helps keep the engine of a vehicle running without throttle input, such as when the car is idling in traffic or parked ...

The choke valve in an engine's carburetor, whether it's a Holley carburetor or another brand, helps a cold engine start by restricting some of the airflow into it. When the engine is cold, the ...

Auto-AirT, an automatic air valve, switches on and off during air-gaging applications and nongaging time. An optional Auto-Air package for use on column and CAGT amplifiers reportedly saves energy ...

Directional valves such as Parker Hannifin's B3G-Series threeway (left) and four-way valves are often used to control pneumatic operations. Directional-control valves are vital in any pneumatic ...

SAF-Holland has added automatic brake adjusters and ride height control valves to its Midland All-Makes Program. For customers that replace their components with like-for-like, the Midland line of ...

Electric chokes use the vehicle's 12-volt power to control the thermostat. These can be integral or divorced varieties, depending on the model. Do all engines have a carburetor choke valve?