Idle air control valve

Asked by Seniorbadwrench Apr 27, 2016 at 04:13 PM about the 2006 GMC Sierra 2500HD SLE1 Extended Cab LB RWD

Question type: Maintenance & Repair

I have a 2006 GMC DIERRA 2500HD SLE 6.0L. Ifle
is very low,  with a lobe, or miss. Foes this thing
have an idle air control valve? Does anyone have
experience with this?

3 Answers
10

Philip answered 7 years ago

Don't have an answer cause I'm trying to find out the same thing for a 2004 GMC Sierra 2500HD 6.0. Where is the IAC?

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GuruW95S9 answered 6 years ago

If it has a throttle cable (drive by cable), yes it has an idle air control valve. If there is a cable on the passenger side of the throttle body, the top connector on the driver side goes to the idle air control. If it doesn't have a cable (drive by wire) the throttle blade is actuated by an electric motor controlled be the computer and no external idle air control is needed.

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Guru9D8NTK answered 3 years ago

hi my 2004 tahoe is drive by wire ..low idle was causing misfire ...u can raise idle by taking tps cover off and adjusting set screw that gear sets on..its very touchy ..it opens up butterfly to let in more air ...and u get more fuel...if u adjust to far it will let u know ..it will code and go to limp mode...i got my idle from 500 up to 700...got rid of random misfire

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