The Idle control air valve on Highlanders, and other Toyota models, and other makes and models of vehicles, becomes dirty. On my Highlander, the dirty valve caused the vehicle to sometimes fail to idle on its own until it warmed up. My research shows that most of the time these valves don't need to be replaced, they just need to be cleaned. If you can locate yours, and have decent mechanical skills, you can clean it and save the cost the dealer would charge to replace one. If you go to the website for "Tundra Solutions" you can find various posts on the Highlander issue, including my detailed summary of how to remove and clean one on a Highlander.
remove it from the engine
Replace the heater control valve motor, a dealer part, costs around $166.00.ish
how do you replace the valve cover gasket on a 2002 mitubishi lancer
Yes but it is computer controled .If it's bad you can clean it or replace it.
Where is the fuel idle control valve for a 2002 Pontiac Sunfire
just unbolt the valve
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Idle air control valve diagram
heater Control valve for 2002 Lincoln Ls
Need to know which one you are looking for or, what does this vacuum control valve control.
"How do you replace the fan control switch on a 2002 Grand Prix?"
my 2002 volvo s-40 is miss firing and it is alleged that the fault is from the idle air control valve. how can i clean the valve?