chriss Posted March 29, 2009 Share Posted March 29, 2009 Just got my haynes manual now i can be more specific. My 2002 ES300 started to idle high on first start. about 1200-1400 rpm. i had read that it may help if i spray throttle cleaner into the butterfly valve of the throttle body. after i did that the idle went up to 1800-2000 rpm at start up and then eventually slows back to the original high idle of 1200-1400. i have read that some people here have had good results cleaning the IAVC. i can not find any info about the IAVC in the haynes manual other than a brief mention and no info on where it is or how to remove it. Chriss i was searching for good info on the boards but couldn't find any real specific info/pics. can someone throw me a bone....PLEASE!! many thanks, Chriss Quote Link to comment Share on other sites More sharing options...
SW03ES Posted March 30, 2009 Share Posted March 30, 2009 Last time I checked the ES had no carburetor...and no carb cover... Where did you spray this cleaner, into the throttle body? Quote Link to comment Share on other sites More sharing options...
godzillatreat Posted March 31, 2009 Share Posted March 31, 2009 Can you give me a little more detail about what you were trying to do? I wasn't quite sure what you were talking about. Quote Link to comment Share on other sites More sharing options...
chriss Posted March 31, 2009 Author Share Posted March 31, 2009 Just got my haynes manual now i can be more specific. My 2002 ES300 started to idle high on first start. about 1200-1400 rpm. i had read that it may help if i spray throttle cleaner into the butterfly valve of the throttle body. after i did that the idle went up to 1800-2000 rpm at start up and then eventually slows back to the original high idle of 1200-1400. i have read that some people here have had good results cleaning the IAVC. i can not find any info about the IAVC in the haynes manual other than a brief mention and no info on where it is or how to remove it. Chriss Quote Link to comment Share on other sites More sharing options...
TroyLexus Posted April 6, 2009 Share Posted April 6, 2009 Just got my haynes manual now i can be more specific.My 2002 ES300 started to idle high on first start. about 1200-1400 rpm. i had read that it may help if i spray throttle cleaner into the butterfly valve of the throttle body. after i did that the idle went up to 1800-2000 rpm at start up and then eventually slows back to the original high idle of 1200-1400. i have read that some people here have had good results cleaning the IAVC. i can not find any info about the IAVC in the haynes manual other than a brief mention and no info on where it is or how to remove it. Chriss Any update on this ? I also seem to have 1200RPM idle... is my IAVC suspect ? 80,000 miles. . Quote Link to comment Share on other sites More sharing options...
camlex Posted April 7, 2009 Share Posted April 7, 2009 did you try to clean outside of TB where cable drive the TBplate? idle should be 700-800 rpm Quote Link to comment Share on other sites More sharing options...
TroyLexus Posted April 7, 2009 Share Posted April 7, 2009 did you try to clean outside of TB where cable drive the TBplate?idle should be 700-800 rpm No I haven't, should I ? what should I use ? degreaser and a rag ? about 50 deg F outside, engine is cold, and RPM should be 800 ? thanks that was helpfull... i knew 1400 wasn't right... . Quote Link to comment Share on other sites More sharing options...
lenore Posted April 7, 2009 Share Posted April 7, 2009 here is a thread on the RX300 IACV which probably is similiar.... http://us.lexusownersclub.com/forums/index...p;hl=IACV+valve Quote Link to comment Share on other sites More sharing options...
camlex Posted April 7, 2009 Share Posted April 7, 2009 I have 351,000 miles and never opened IACV, when I clean TB, I spray lots TB cleaner in IACV hole. Hope that helps. Quote Link to comment Share on other sites More sharing options...
TroyLexus Posted April 9, 2009 Share Posted April 9, 2009 I have 351,000 miles and never opened IACV, when I clean TB, I spray lots TB cleaner in IACV hole.Hope that helps. Camlex, thanks, I will be trying that this weekend. I'll post results... By the way, 351,000 miles ? can I ask what year and make that is ? just curious Quote Link to comment Share on other sites More sharing options...
camlex Posted April 9, 2009 Share Posted April 9, 2009 It's 97 ES300 with 351,100........ Quote Link to comment Share on other sites More sharing options...
Lexlogic Posted April 13, 2009 Share Posted April 13, 2009 here is a thread on the RX300 IACV which probably is similiar....http://us.lexusownersclub.com/forums/index...p;hl=IACV+valve IACV Click here Quote Link to comment Share on other sites More sharing options...
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