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LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Idle Air Control Valve

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Old Sep 26, 2006 | 12:52 AM
  #1  
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Default Idle Air Control Valve

for 1990-1994 Lexus LS400..
Where is this part located:


PICS WOULD BE GREAT!

heard people calling it idle up valve, ICV, IACV, some people saying they got it for $70 bucks others saying $700..anybody know the definent answer to this?

much appreciation is greatly accepted.
thanks..
would help a lot of LS owners out.

possibly related to low idle issues...worth checking out my other posts.
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Old Sep 26, 2006 | 01:09 AM
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Fairly certain that it mounts towards the passenger headlight into the Power Steering pump.
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Old Sep 26, 2006 | 04:43 PM
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Crazimofo,

The Idle Air Control Valve and Power Steering Idle up Valve are different things. The Power Steering Idle Up Valve is attached to the power steering pump. The Idle Air Control Valve is right at the center of your engine. See attached picture.
Attached Thumbnails Idle Air Control Valve-1191323085_l2.jpg  
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Old Sep 27, 2006 | 12:41 AM
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Was not certain that we were talking about the same parts so thanks for the correcection. That damn part cost how much??
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Old Jul 8, 2011 | 10:57 PM
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Where is the idle up valve that can stop me from losing ps fluid & stop the smoke. Replace the high pressure hose and a new ps pump .smoke stop for 3 days as well as the leak,back again it;s a nightmare. Can some one break it down to a dummy.
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Old Jul 9, 2011 | 01:33 AM
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This should explain it all:

https://www.clublexus.com/forums/ls4...ystem-diy.html

and this:

http://us.lexusownersclub.com/forums...showtopic=6583
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Old Jul 9, 2011 | 07:13 AM
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Originally Posted by RICWON1
Where is the idle up valve that can stop me from losing ps fluid & stop the smoke. Replace the high pressure hose and a new ps pump .smoke stop for 3 days as well as the leak,back again it;s a nightmare. Can some one break it down to a dummy.
It's good that you searched but next time do a little better. Posted in a wrong thread, which is 5 yrs old. Check the first link that AzHotLS posted and you'll find all your power steering fluid issues.
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Old Jul 16, 2011 | 03:53 PM
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Thanks I'm a new member 1st thread. Corrected the problem Thanks.

Any chance some one can help me with sluggish power hard to get up to speed. I also smell gas. I change the 2 o2 sensors pre-cat converter, could I need 2 post o2 sensors & a cat ?
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