Idle Error Control Motor -- 2000 ES300
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hi. my lexus is having issues starting sometimes, seems more the case when the engine hasn't run (e.g. overnight) or maybe when it is damp and cool outside.
first, i had the starter replaced and this happened right after that. but apparently, this is a total coincident just like my bad knock sensor and MAF all coming in the last 6 months.
i took it to a new mechanic and he says it's the idle error control motor and it should be replaced. any chance it could just be the valves or i can just clean it instead of replacing it?
it sometimes dies after the starting. i can fairly reliably cure it by stepping on the gas gently right after starting the engine.
thanks, everybody!
first, i had the starter replaced and this happened right after that. but apparently, this is a total coincident just like my bad knock sensor and MAF all coming in the last 6 months.
i took it to a new mechanic and he says it's the idle error control motor and it should be replaced. any chance it could just be the valves or i can just clean it instead of replacing it?
it sometimes dies after the starting. i can fairly reliably cure it by stepping on the gas gently right after starting the engine.
thanks, everybody!
Last edited by amanda; 12-03-12 at 09:34 AM.
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it's only in the beginning at startup. today, it had issues when i stepped on the gas after starting. it caught and i reversed but then died on "drive." after a few tries, i just left it on at drive for a few seconds without touching the gas pedals and it was ok.
but once the engine has been on for a minute or so, it is always fine.
mainly, i'd like to know if it's the motor or if i can clean the valves instead.
if i can clean it, is it hard to get to and can i just use like an MAF cleaner? that's what i have around.
thanks.
but once the engine has been on for a minute or so, it is always fine.
mainly, i'd like to know if it's the motor or if i can clean the valves instead.
if i can clean it, is it hard to get to and can i just use like an MAF cleaner? that's what i have around.
thanks.
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Are you talking about the idle air control valve? If so follow this link for cleaning without removing the IAC valve. https://www.clublexus.com/forums/rx-...-write-up.html
Of course to get a more thorough cleaning requires removing the IAC valve.
Use throttle body cleaner to clean the IAC valve.
Of course to get a more thorough cleaning requires removing the IAC valve.
Use throttle body cleaner to clean the IAC valve.
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I've had to replace both O2 sensors, one knock sensor, clean the IAC valve, and the oil control valve (get ready for it). I think these are just common problems when these cars reach a certain point. All these repairs can be done DIY if you are somewhat mechanically inclined. Plus this forum (and others) can provide valuable tips and instruction.
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thanks, guys. i will attempt to clean the IAC valve but i had a mechanic put in the knock sensor b/c going behind the manifold seemed so daunting.
i'll give an update when i finish.
i'll give an update when i finish.
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I had a similar problem with my 99 ES300. I took off the throttle body and cleaned it out with carb cleaner and that solved the problem. That was 6 months ago and I haven't had any further issues (knock on wood).
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well, it seems to have done the trick. the air intake hose was fairly snug so i had to warm it up with a hot towel before pulling it off.
thanks, everybody.
thanks, everybody.
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