Idle air control motor. It's on the back of the throttle body. Four wire connector.

 

Yup, idle air sensor. Mine was covered in crap, and the area all around it. Cleaned it, got new sensor, and now it runs like a champ. Simple fix..

 

To avoid any confusion, just wanted to point out that the IAC motor is just that, a small electric motor, and not a sensor. The PCM sends signals to the IAC motor that tell it to move a plunger in or out that regulates the amount of air flowing through a passage in the throttle body to keep idle speed steady.

 

Today I got an engine flush and high mileage oil. Also a fuel system flush. Oil pressure gage problem so far went away. I will see tomorrow morn if the stalling prob exists. If so I'll try replacing the IAC. Is it easy to replace? What is the cost for it?

 

Very simple, and it should run you about fifty bucks.

 

Firewall side of the throttle body is a sensor... Not sure if its called idle air sensor, air speed sensor, or what. But that is what I was referring to.

 

Again, if we're talking about the same thing, and I think we are, that's not a sensor, in that it doesn't sense anything. Something else senses something, and tells it to regulate the amount of air flowing into a passage in the throttle body by moving a plunger in or out.

 

It is not mechanical. It's electrical. Resembles the look of an o2 sensor. There are no moving parts.

 

If we are talking about the same thing, and I believe we are, it is both electrical and mechanical, and does have moving parts.

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This is what I'm referring to; the IAC motor. The thing in this picture with the screwdriver bit in its mounting screw. If this is not what you're referring to, please post a picture of what you are referring to.

 

Please note: In the picture above, you are indeed looking at the BACK side of the throttle body. John cheats, and drives a van. He doesn't have nearly the troubles doing a tuneup as the truck guys do.

I vote we have at LEAST three people bring their trucks to him, to have him change the dist cap and rotor on them. Who's with me?