Hello All,

As of this morning when I turn on the heater, it feels a little too hot and the temperature only set it to 75. Even if I low down the temp to 65 degree, it is still blowing hot air. Then I turn on the AC and still get hot air out. Is my servors went bad? If the servor gone bad, which are those servors? How many servors do we have in our GS400, 98's model, is it two or three servors? Pls help so I can try to change the correct one. I know that changing this servors is pain in the rear. I am going to attempt. Thank you in advance guys.

 

Now I can get the cold and the heat by adjusting the temp, but the vent mode is not working. Can't switch to a different mode. What servo is the correct one replace? Pls guys I need help. Thanks in advance.

 

then help yourself first and search please there are a million of these threads now-a-days, your not a new member you know the drill....

 

Yes, I did the search and I found it was the mode servo. Now how do I know where exactly is the mode servo located among the three servos on the passenger side? I just need someone to point me to the correct one. Thank you guys.

 

^sigh, im done....

 

https://www.clublexus.com/forums/gs-...vo-motors.html


typed "servo" in search field

 

Thank you 99GSThree. I found the same link and other useful link as well. I got my two parts, the mode and air mix servos from my locate dealer. I might attempt to install this weekend or I wait until the Holiday. I will set you know how it goes. Once again, thank you 99GSthree and Sakai for helping me out on this one. Save me a lot of money for the labor services.