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Unfortunately, the 2002 es300 was the first year that Lexus did not use a IACV in the ES300.
2003 es300 lexus
how to replace 97 Lexus ES300 transmission
should be on top of valve cover This picture will help you find the PCV valve http://www.clublexus.com/forums/es300-and-es330-forum/418700-2001-lexus-es300-pcv-where-is-it.html What you really need to know is that if your engine has been desludged the L shaped plastic PCV valve would have been replaced with the metallic, straight screw in PCV valve first introduced in 2002.
Check your oil level.
Remove front passenger seat on Lexus es300?
IT IS LOCATED UNDER THE ENGINE COVER, THER WILL BE A HOSE CONNECTED TO IT. TAKE TEH ENGINE COVER OFF WITH 10MM SOCKET. IT IS LOCATED UNDER THERE NEAR THE FIREWALL. Have you heard the phrase a picture is worth 1000 words? The picture of this vehicle will help you find your pcv valve. Check it out: http://www.clublexus.com/forums/es300-and-es330-forum/418700-2001-lexus-es300-pcv-where-is-it.html
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