[avconsult]

Note that you don't have to take the IAC off in many cases to correct the sticking issue. The IAC intake port is a slot at the bottom of the throttle body throat, which you can see when you take the air cleaner tube off.

Spray THROTTLE BODY CLEANER (not carb cleaner) into the port with the engine off, let it sit for 15 mintes and start car.

Then have someone crank the steering wheel al the way one direction and spritz the port while that person turns and holds the wheel slightly against the limit, and then releases. The IAC moves kicking up, then reducing the RPM's when the steering pump pressure increases and decreases, and with the cleaner spritzing will usually clean itself nicely.