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2000 Lexus ES 300 high idle after warm up

Tiny
JSCRISTOFER9
  • MEMBER
  • 2000 LEXUS ES 300
  • 3.0L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 227 MILES
When starting my car the idle stars at 1000 rpm
& going up to 1200 rpm & stay like that
any suggestions
thank you
Thursday, December 25th, 2014 AT 5:22 PM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
First eliminate all vacuum or air leaks in the system. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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Thursday, December 25th, 2014 AT 6:07 PM
Tiny
JSCRISTOFER9
  • MEMBER
  • 3 POSTS
Yep I did that o ready,
maybe I should replace iac,
Thank you for your time
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Friday, December 26th, 2014 AT 1:23 AM

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