Air Mix Servo???
#31
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Hi smerre01,
Please post any pictures of glove box removal, as well as other panels that needs to be removed or loosend. Also, please post pictures of servo locations/removal procedures and inards if any.Thank you in advance!
Please post any pictures of glove box removal, as well as other panels that needs to be removed or loosend. Also, please post pictures of servo locations/removal procedures and inards if any.Thank you in advance!
#32
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#33
Lexus Fanatic
iTrader: (182)
https://www.clublexus.com/forums/gs-...vo-motors.html Heres the DIY
i knew the rx and the gs shared the issue but i never thought bout actually posting my DIY in the RX section. hope it helps you guys....
#34
A tip on how to loosen the upper screw (the one blocked by pipes) on the air mix servo... For me the stubby-Phillips-at-an-angle approach wasn't working and I was worried I was damaging the screw head. I was able get it out using a very thin, small, flat head screw driver bit from a computer repair kit. The bit was about 2 inches long and thin enough to fit between the pipes and the flat end small enough to fit in the Phillips head. To turn it I clamped the bit in needle nose vice grips.
Once the servo was out the assortment of micro screw driver bits worked really well as wedges to pry the clips and get the box open.
Inside looked fine other than black gunk on the brush type contacts. After cleaning contacts and re-installing the servo not longer hunts and I have heat.
Once the servo was out the assortment of micro screw driver bits worked really well as wedges to pry the clips and get the box open.
Inside looked fine other than black gunk on the brush type contacts. After cleaning contacts and re-installing the servo not longer hunts and I have heat.
#35
A tip on how to loosen the upper screw (the one blocked by pipes) on the air mix servo... For me the stubby-Phillips-at-an-angle approach wasn't working and I was worried I was damaging the screw head. I was able get it out using a very thin, small, flat head screw driver bit from a computer repair kit. The bit was about 2 inches long and thin enough to fit between the pipes and the flat end small enough to fit in the Phillips head. To turn it I clamped the bit in needle nose vice grips.
Once the servo was out the assortment of micro screw driver bits worked really well as wedges to pry the clips and get the box open.
Inside looked fine other than black gunk on the brush type contacts. After cleaning contacts and re-installing the servo not longer hunts and I have heat.
Once the servo was out the assortment of micro screw driver bits worked really well as wedges to pry the clips and get the box open.
Inside looked fine other than black gunk on the brush type contacts. After cleaning contacts and re-installing the servo not longer hunts and I have heat.
#37
I've done a couple of them and they're not that bad if you have any mechanical aptitude.
#39
Had replaced the air/servo motor (bottom) about a year agao. Then just before 1yr, it happened again, and completely died. Part replacement was under warranty but going back in there and messing with those screws were no fun.
#40
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Had the blessed servo failure on wife’s car and only had about an hour to work on it before catching a flight. I decided to go with a temporary no-cost fix. It had failed in the “air to the footwell” mode which doesn’t work well for AC in the summer. I removed the glove box and coaxed the damper into position by moving the linkage. Then I unplugged the servo. So for now, it’s in the right mode for summer and makes no noise. Here’s some pics.
1. The view with the glove box removed
2. The problem servo
3. Connector removed
HTH
1. The view with the glove box removed
2. The problem servo
3. Connector removed
HTH
#41
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Join Date: Apr 2010
Location: ca
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I took the servo apart apply voltage to motor, motor work fine, when I put them back together can't turn arm. Can someone please tell me what cause that, when I connect power to the servo, it wouldn't work. If someone have a picture what position the arm of the servo when I put it together. Thank in advance
#42
Moderator
One issue could be the arms are stiff (a damper door is stuck) etc ...
The other is the motor with no load works and when subjected to normal load it craps out.
Mechanical linkages are out of sync.The servo needs to be in sync with the arm position.
Salim
The other is the motor with no load works and when subjected to normal load it craps out.
Mechanical linkages are out of sync.The servo needs to be in sync with the arm position.
Salim
#43
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Join Date: Aug 2008
Location: Tennessee
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Air Mix Servo
Had the same issue on my 2001 RX300. Just replace the mix servo and you'll be good to go. It's really not that hard. Remove the glove box and kick panel. You'll see two valves that look exactly alike, and they are. The mix servo is the forward one. They run a little over $200 at the dealer. Couldn't find it anywhere else. You should do this when your car is cold. There is a heater hose that runs very close and it gets very hot. Good luck.
#44
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Had the blessed servo failure on wife’s car and only had about an hour to work on it before catching a flight. I decided to go with a temporary no-cost fix. It had failed in the “air to the footwell” mode which doesn’t work well for AC in the summer. I removed the glove box and coaxed the damper into position by moving the linkage. Then I unplugged the servo. So for now, it’s in the right mode for summer and makes no noise. Here’s some pics.
1. The view with the glove box removed
2. The problem servo
3. Connector removed
HTH
1. The view with the glove box removed
2. The problem servo
3. Connector removed
HTH
#45
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Join Date: Aug 2008
Location: Tennessee
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I took the servo apart apply voltage to motor, motor work fine, when I put them back together can't turn arm. Can someone please tell me what cause that, when I connect power to the servo, it wouldn't work. If someone have a picture what position the arm of the servo when I put it together. Thank in advance