artbuc Posted August 4, 2007 Share Posted August 4, 2007 At only 78k my IACV is shot . Should I replace with Toyota OEM or can I go aftermarket? I would appreciate any suggestions on what and where to buy to get best price and quality. Thanks. Quote Link to comment Share on other sites More sharing options...
artbuc Posted August 6, 2007 Author Share Posted August 6, 2007 At only 78k my IACV is shot . Should I replace with Toyota OEM or can I go aftermarket? I would appreciate any suggestions on what and where to buy to get best price and quality. Thanks. OK, I answered my own question. RockAuto offers Standard Motor Products for $163.79 and Airtex for $248.79 both plus S&H. Lexus of Wilmington had one in stock for $223. Picked-it up on Saturday and guess what? It was DOA!!! Resistance across both open and close circuits should be the same and about 23 ohms at room temp. This brand new Aisan IACV had 28k ohms across "close valve" circuit and over 38m ohms (basically open) across "open valve" circuit. When I put 12 volts across "open valve" circuit it did absolutely nothing. I can't get another IACV until Tuesday. Very disappointing. Quote Link to comment Share on other sites More sharing options...
artbuc Posted August 7, 2007 Author Share Posted August 7, 2007 At only 78k my IACV is shot . Should I replace with Toyota OEM or can I go aftermarket? I would appreciate any suggestions on what and where to buy to get best price and quality. Thanks. OK, I answered my own question. RockAuto offers Standard Motor Products for $163.79 and Airtex for $248.79 both plus S&H. Lexus of Wilmington had one in stock for $223. Picked-it up on Saturday and guess what? It was DOA!!! Resistance across both open and close circuits should be the same and about 23 ohms at room temp. This brand new Aisan IACV had 28k ohms across "close valve" circuit and over 38m ohms (basically open) across "open valve" circuit. When I put 12 volts across "open valve" circuit it did absolutely nothing. I can't get another IACV until Tuesday. Very disappointing. UPDATE. Turns out nothing was wrong with the new Lexus IACV. My Lexus Repair Manual is wrong! Volume 2, Pages SF42 & SF46, describe electrical checks for IACV. All of this info is incorrect. It applies to the rotary solenoid type IACV's used in some other Toyotas such as my 99 Avalon. The IACV in my RX is magnetic induction which operates off a pulse signal. Resistance measurements scross the coil circuits are meaningless and you cnnot operate it manually by applying 12VDC. Good news is I have a new $227 IACV, bad news is my old one worked fine - just needed to be cleaned. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.