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1997 Lexus es300 idle problems after sitting for awhile


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lzuroske
New User

May 11, 2016, 7:32 PM

Post #1 of 6 (959 views)
1997 Lexus es300 idle problems after sitting for awhile Sign In

I have a 1997 Lexus ES300. Twice now, when I parked somewhere to get something, when I came back and started up the car, it started to stall out. The RPM's would start at around 1,000 and then go down to zero and shut off the car. After letting the car sit for 10 or 15 minutes I started to car and everything was fine. No idling problem. What could be happening ?


Tom Greenleaf
Ultimate Carjunky / Moderator
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May 12, 2016, 3:47 AM

Post #2 of 6 (879 views)
Re: 1997 Lexus es300 idle problems after sitting for awhile Sign In

Could be several reasons so would begin with code readings even if no light is illuminated there should be codes to help. Post what it says by code #s and we can go from there,


T



Discretesignals
Ultimate Carjunky / Moderator
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May 12, 2016, 4:47 AM

Post #3 of 6 (875 views)
Re: 1997 Lexus es300 idle problems after sitting for awhile Sign In

If you hit the gas, can you prevent it from stalling?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


lzuroske
New User

May 12, 2016, 7:04 PM

Post #4 of 6 (850 views)
Re: 1997 Lexus es300 idle problems after sitting for awhile Sign In

Yes, if I hit the gas it will not stall. But once I let my foot off the gas the RPM's go to 0 and the car shuts of.


lzuroske
New User

May 12, 2016, 7:07 PM

Post #5 of 6 (849 views)
Re: 1997 Lexus es300 idle problems after sitting for awhile Sign In

I did have one of the guys at work hook up the computer a few months ago and it read that one of the knock sensors has problems. But I was not having the problem of the RPM's going from over 1,000 down to 0 at that time. And this problem does not happen every day. When I get out of my car at work and leave the car to sit all day, I have not had the idle problem when leaving work. I will try to have the guy at work run the computer check again tonight after work.


Discretesignals
Ultimate Carjunky / Moderator
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May 12, 2016, 7:33 PM

Post #6 of 6 (845 views)
Re: 1997 Lexus es300 idle problems after sitting for awhile Sign In

There might be a problem with the rotary idle air valve. The rotor portion gets carboned up and sticks. It is a fairly common problem on those if they have a lot of mileage and age.

Its not too difficult to repair. You have to remove the throttle body and the idle air control valve assembly from the throttle body. You'll need the idle air control gasket, tooth brush, carb cleaner, and an impact driver with Phillip bit installed to remove the screws. Once you get it apart, remove the electrical coil from the idle control valve, so you can rotate the valve shaft. Use carb cleaner and a tooth brush to clean the rotary portion, so it rotates freely. Put it all back together and see how it goes.









Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on May 12, 2016, 7:34 PM)






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