Idle Air Control Valve

2004 CHEVROLET EXPRESS
180,000 MILES • 5.3L • V8 • AUTOMATIC
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ADMOSS
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Hi,
Lately the van has had problems running with a low idle that causes the motor to die when parked. I have heard that it is either a bad idle position sensor or a bad idle air control valve. I cannot take it to a dealership to have diagnostics run on it, because the inspection date is out. I have been able to find an idle position sensor for it. The part that I have not been able to find is the idle air control valve, because (supposedly) it was not produced separately from the throttle body during that year. I would rather not have to pay $350.00 for a new throttle body. Would you happen to know where I could find an Idle Air Control Valve for my van? specs listed above.

Thank you
Oct 4, 2016 at 10:46 AM
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HMAC300
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try cleaning throttle body plate on both sides and IAC hole with choke cleaner that may all it may be they get gummy and do not work. a lot of times. parts are made to replace so other parts in the assembly are more than likely worn as well. part is $268.00 at rock auto.if auto parts does not make the IAC then you will have to get the whole assembly.
Oct 4, 2016 at 12:11 PM