Re: TB cleaning - Attn: Bernd

From: Kyle Kozubal (grndak4x4@home.com)
Date: Mon Dec 04 2000 - 18:51:03 EST


> I did like you said and removed the TB for a cleaning this past weekend
> (as mentioned in an earlier post). I removed all the sensors as well.
Man,
> was the IAC nasty. I think it was the IAC - the one on the back with the
> plunger thing you told me not to turn. I cleaned the chamber it goes into
> and the plunger itself. It was REALLY dirty. My question is...what is
the
> IAC? What does it do? That thing could not have been performing the way
it
> should have. I'm extremely glad I took your advice and removed
everything.
> Oh, and there was another hose connected to the TB you didn't mention
> removing. What is it? It's on the front of the TB. Again, sorry for all
> the questions...just trying to gain as much knowledge about things as
> possible so I know what I'm doing.

The sensor on the backside of the TB is called the AIS sensor, atleast it is
called this on GenII Dakotas. It stands for the Automatic Idle Sensor, and
it is actually called an 'AIS Motor'. It had to do with idle quality and
such. I had it replaced under warranty once, and have thrown an AIS related
fault code since then. I have replaced it once, and the code never came
back. I think it was around $40 through the dealer. I make sure to take it
out and clean the tip off once every 10,000 miles, or whenever I clean the
TB with a can of Gumout Throttle Body & Intake Cleaner. The sensor on the
front of the TB is the MAP sensor, and the one on the driver's side is the
TPS Sensor.
Kyle
93 Dakota 4x4 V6



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