Question about 1993 Lexus Es 300
If it were my car , I would first be sure that there are no vacuum leaks anywhere on the engine . Also I would check to be sure that all of my vacuum hoses our OK . No cracks , collapsed hoses , or sharp bends in any of the hoses that might inhibit the vacuum flow in the hose . Take your time and check every single hose . If the vacuum system is OK regarding all of the vacuum lines , then I would go ahead and replace the coolant temperature sensor (it sends temperature data to the computer, or ECM). Be careful not to misunderstand me . There is a sensor and also a sender . You have a coolant temperature sender that is part of your temperature gauge or your temperature light circuit . That is not the one I am referring to . So be sure and tell your parts retailer that you need the coolant temperature sensor for the computer (ECM)
As you mentioned that you had no trouble codes , be sure to check the vacuum hoses and connections first , and repair as necessary . If you do find some bad hoses or connections and repair them , take the car for a test drive and see if you have the same problem . If you do , then go ahead and replace the sensor I mentioned above . Good luck .
Posted on Sep 05, 2010
Good Evening. As we all know computers are not always perfect, which is a sad truth. First off Idle air control sensor (will make your idle go up in the morning for cold idle, and when your drive and stop normally). Second I would say white smoke is usually moisture, which depending on how much of it could be normal with age if minimal.An idle air problem could make for other problems and would be where I would start first. Hope that helps, and anything else let me know.
Posted on Sep 05, 2010
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Posted on Jan 02, 2017
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