Table of Contents
What is idle up actuator?
An idle air control actuator or idle air control valve (IAC actuator/valve) is a device commonly used in fuel-injected vehicles to control the engine’s idling rotational speed (RPM). In carburetted vehicles a similar device known as an idle speed control actuator is used.
What happens when idle sensor goes bad?
If the idle control valve fails completely, it may leave the vehicle without a source of air to maintain a proper idle. This may result in the engine stalling while operating, and in some cases may result in an engine that will not idle at all, and stalls as soon as it is started.
What is a vacuum switching valve on a Toyota Camry?
A/C idle-up vacuum switching valve (genuine Toyota parts This is the VSV bolted to your valve cover. It hooks to the A/C idle up diaphragm and it raises the idle slightly when you turn the A/C on to keep it from having a low/rough idle with the a/c on. Includes pre-cut vacuum lines attached.
How do I change the idle speed on my AC motor?
When the motor is hot, turn on the a/c-the idle speed should go up. Turn the a/c actuator screw in or out to lower or raise the a/c idle speed. If the idle speed doesn’t change when the a/c compressor is engaged, check the a/c vsv-instructions in the factory manual in the AIR CONDITIONING-VACUUM SWITCHING VALVE (VSV) section.
Where is the idle set screw on the throttle body?
The main air bypass – that controls the hot idle – is above the throttle plate, and is controlled by the idle set screw – the large screw on the top of the throttle body. It allows air to bypass the throttle plate at all times.
What does the a/C Idle Up actuator do?
That’s the A/C idle up actuator-is that what you mean? It’s attached to the engine side of the plenum between the “E” and the “F”, and has a big hex-shaped plastic screw to set the idle speed increase when the a/c compressor is operating-I mentioned it at the end of my first post.