1989 GMC Idle Air Control Valve--Removal/Cleaning

Any special precautions for removal and cleaning of the Idle air control valve from my 1989 GMC Vandura? What is the best way to remove it? It
doesn't appear to have any bolts attaching it to the throttle body. Does it just pull out? or is it threaded? How about cleaning, will any carb cleaner do? Thanks for the help. Mike
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