bamaskater11 Posted October 30, 2013 Share Posted October 30, 2013 It is a 2000 model and I was driving it on the Highway, then came to a complete stop and about 10 seconds later (while still stopped), my RPM's start to rev up and down and then it stalls. I cannot figure a way to fix this without taking it in to a shop. Any suggestions? Quote Link to comment Share on other sites More sharing options...
lenore Posted October 30, 2013 Share Posted October 30, 2013 Might be the IACV (Idle Air Control Valve) There is a way to clean this valve and rectify your problem. Do a IACV search in the RX300 Forums....there is a great thread to cleaning this valve. edit: here it is http://us.lexusownersclub.com/forums/topic/30723-step-by-step-instructions-for-iacvidle-air-control-valveiscthrottl/ Quote Link to comment Share on other sites More sharing options...
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