Assuming you have a mpfi engine it is in the throttle body.
The idle air control valve on the Chevy Colorado actually controls the speed of your engine's idle. The valve is sometimes called the idle speed control valve.
98 chevy lddle control valve
== ==
The 2004 Chevrolet Cavalier idle air control valve can be found on the firewall in the engine compartment. The valve will be on the passenger side of the firewall.
The idle air control valve is located on the throttle body, and the EGR valve is located on the intake manifold.
yes they are in a 1994 chevy silverado and is located on the left side of the throttle body.
If you are talking about the air idle control valve it is a little square black box with two bolts and a plug on top of your engine block.
behind the throlt body
The IAC the Idle Control Valve, this controls the mixture between fuel and air for the idle of your vehicle.
It could be the Idle Air Control (Idle speed control) valve. Its located on the left side of your TBI and has an electrical connection.
The idle speed on a 1987 Chevy Celebrity is controlled by the engine computer, there is no way provided to adjust it.
The idle speed is read by the Engine Control Module(computer) and adjusted as necessary by use of the idle air control in conjunction with the throttle position sensor. There is no separate idle sensor as such.