GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Idle Air Control Valve

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Old 06-04-10, 03:04 PM
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julianhue
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Default Idle Air Control Valve

My Idle Air Control Valve went out on my 98 Lexus Gs300 and the toyota delaership is trying to charge me 1600.00 for the cost 1400.00 for the part and 200.00 for the labor ?
I found the IACV online for 350.00 and ordered but I have not took it to them yet to put on the car.
They told me you have to replace the whole throttle body to replace the IACV not just the IACV itself which does not sound right ?

Help!!!!
Old 06-04-10, 05:13 PM
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99Aristo
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That's the only way the dealership can get it. They told me I had to get a throttle position sensor seperate but I found it as a Toyota part seperate thru someone else Crazy, but that's how they get it. Even d-bags on ebay think the TPS is seperate....lol, Always wanting $500 for a use done...and $150-200 for a used TPS when I got mine new for $110. lol If you got a seperate IACV put it on and go with it.
Old 06-04-10, 05:22 PM
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PHML
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cant u just diy?
Old 06-04-10, 05:26 PM
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julianhue
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Default easy

is it that easy?
Old 06-04-10, 05:29 PM
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99aristo
are they any instruction on how to do this?
Old 06-04-10, 08:29 PM
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PHML
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I think I know what part you're referring to...but to confirm...plz post a pic of the IACV.
Old 06-04-10, 08:53 PM
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JeffTsai
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Are you sure you have a 2nd gen GS? All of the 2GS have electronic throttle bodies, they do not have IAC valves. The electronic throttle modulates constantly to regulate idle speed. If it's going out on you, then most likely the entire throttle body has to be changed. If you need a spare, I have one on hand that I'll sell for $250. PM me if you need it.
Old 06-05-10, 04:31 AM
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julianhue
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this is the part @ PHML
Old 06-05-10, 04:32 AM
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julianhue
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Default pic of the IACV

this is the part
Attached Thumbnails Idle Air Control Valve-iacv.jpg  
Old 06-05-10, 04:39 AM
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JeffTsai
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That's not the IACV. It's the electronic throttle control motor. As I said, these cars do not have a IACV.

julianhue, I'll give you a call back later today. Thanks.
Old 06-05-10, 04:55 AM
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julianhue
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look at this link this site sells it as the iacv

http://www.rockauto.com/catalog/rafr...513766-1733517
Old 06-05-10, 05:23 AM
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flexspeed
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Originally Posted by julianhue
look at this link this site sells it as the iacv

http://www.rockauto.com/catalog/rafr...513766-1733517
i got mine from the dealer for 280.00 what you might wanna try is to go or call a couple of dealership and compare... toyota and lexus... have the part number ready...as for me... after i replace that.. it help but then i have to replace my other sensor.. the accelerator sensor...thats is also about 350....
trying to save up to do the swap....b4 that goes out...
Old 06-05-10, 05:26 AM
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julianhue
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Default iaCV

you got what from the dealership which part iacv or the speed sensor
they are trying to charge me 1600.00 for iacv
Old 06-05-10, 05:45 AM
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Default throttle body

did you have to replace the whole throttle body as they are suggesting because this part is built in the throttle body
Old 06-05-10, 10:04 AM
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PHML
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Looks like a simple diy to me....
Attached Thumbnails Idle Air Control Valve-throttle-control-motor-gs300.jpg  


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