DIY on changing servo motors
Didnt want to start a new thread, So I'll post here. I am getting a noise from behind my stereo. It sounds like if a cell phone was stuck somewhere and vibrating. It will do it randomly. Its deffinetly NOT coming out of the glovebox. I took out the ac vents and can feel some vibrating there. Could this be a faulty servo? Or is it something else?
it's a faulty servo motor. you can take the actual electric motor out and re-adjust the arm and then calibrate it again to see if it works, or replace the electric motor inside, or replacement the entire servo assembly.
don't try to force the arm into another position with the electric motor inside; you will snap the gears inside.
don't try to force the arm into another position with the electric motor inside; you will snap the gears inside.
you dont have to be using it. if its stuck,frozen its gonna make the same noise. sometimes mine did it just on start up. no air on or anything
um....the heater for the back? its the same heater for the front. if you ever take your center console off you'll see air vent tubing running under there that comes from behind the dash coming off the a/c box. so what exactly is the problem your having?
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Joined: Dec 2005
Posts: 550
Likes: 25
From: ca
Brian,
Great DIY, I started it this weekend and got far enough to see which of my servos are bad (turns out to be the driver's side and the cooling servo, but not the mode servo). I ordered all three anyway, and will get back to this after the parts come in.
A couple of comments and questions so far (please don't take these as criticism, just as a suggestion for clarification):
1) Steps 1-2 and 3-4 should be reversed, as you have to drop the access panel before you can get to the two 10mm screws of the glove box.
2) Step 8 - on my car at least, I had three nuts holding the CD player in place, not two. Both of the nuts shown in Step 8 had to be removed.
Now, for the question:
1) How did you get to the one screw on the cooling servo that is hidden behind the AC line? Did you pry on the line a bit, or had some other trick?
BTW, I ordered all three of mine online from Lexus of Pembroke Pines, which came to about $385 including shipping. That's an average of less than $130 per servo, delivered, which I think is a pretty hard price to beat.
Leon
Great DIY, I started it this weekend and got far enough to see which of my servos are bad (turns out to be the driver's side and the cooling servo, but not the mode servo). I ordered all three anyway, and will get back to this after the parts come in.
A couple of comments and questions so far (please don't take these as criticism, just as a suggestion for clarification):
1) Steps 1-2 and 3-4 should be reversed, as you have to drop the access panel before you can get to the two 10mm screws of the glove box.
2) Step 8 - on my car at least, I had three nuts holding the CD player in place, not two. Both of the nuts shown in Step 8 had to be removed.
Now, for the question:
1) How did you get to the one screw on the cooling servo that is hidden behind the AC line? Did you pry on the line a bit, or had some other trick?
BTW, I ordered all three of mine online from Lexus of Pembroke Pines, which came to about $385 including shipping. That's an average of less than $130 per servo, delivered, which I think is a pretty hard price to beat.
Leon
Brian,
Great DIY, I started it this weekend and got far enough to see which of my servos are bad (turns out to be the driver's side and the cooling servo, but not the mode servo). I ordered all three anyway, and will get back to this after the parts come in.
A couple of comments and questions so far (please don't take these as criticism, just as a suggestion for clarification):
1) Steps 1-2 and 3-4 should be reversed, as you have to drop the access panel before you can get to the two 10mm screws of the glove box.
2) Step 8 - on my car at least, I had three nuts holding the CD player in place, not two. Both of the nuts shown in Step 8 had to be removed.
Now, for the question:
1) How did you get to the one screw on the cooling servo that is hidden behind the AC line? Did you pry on the line a bit, or had some other trick?
BTW, I ordered all three of mine online from Lexus of Pembroke Pines, which came to about $385 including shipping. That's an average of less than $130 per servo, delivered, which I think is a pretty hard price to beat.
Leon
Great DIY, I started it this weekend and got far enough to see which of my servos are bad (turns out to be the driver's side and the cooling servo, but not the mode servo). I ordered all three anyway, and will get back to this after the parts come in.
A couple of comments and questions so far (please don't take these as criticism, just as a suggestion for clarification):
1) Steps 1-2 and 3-4 should be reversed, as you have to drop the access panel before you can get to the two 10mm screws of the glove box.
2) Step 8 - on my car at least, I had three nuts holding the CD player in place, not two. Both of the nuts shown in Step 8 had to be removed.
Now, for the question:
1) How did you get to the one screw on the cooling servo that is hidden behind the AC line? Did you pry on the line a bit, or had some other trick?
BTW, I ordered all three of mine online from Lexus of Pembroke Pines, which came to about $385 including shipping. That's an average of less than $130 per servo, delivered, which I think is a pretty hard price to beat.
Leon
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Joined: Dec 2005
Posts: 550
Likes: 25
From: ca
Brian,
Great DIY, I started it this weekend and got far enough to see which of my servos are bad (turns out to be the driver's side and the cooling servo, but not the mode servo). I ordered all three anyway, and will get back to this after the parts come in.
A couple of comments and questions so far (please don't take these as criticism, just as a suggestion for clarification):
1) Steps 1-2 and 3-4 should be reversed, as you have to drop the access panel before you can get to the two 10mm screws of the glove box.
2) Step 8 - on my car at least, I had three nuts holding the CD player in place, not two. Both of the nuts shown in Step 8 had to be removed.
Now, for the question:
1) How did you get to the one screw on the cooling servo that is hidden behind the AC line? Did you pry on the line a bit, or had some other trick?
BTW, I ordered all three of mine online from Lexus of Pembroke Pines, which came to about $385 including shipping. That's an average of less than $130 per servo, delivered, which I think is a pretty hard price to beat.
Leon
Great DIY, I started it this weekend and got far enough to see which of my servos are bad (turns out to be the driver's side and the cooling servo, but not the mode servo). I ordered all three anyway, and will get back to this after the parts come in.
A couple of comments and questions so far (please don't take these as criticism, just as a suggestion for clarification):
1) Steps 1-2 and 3-4 should be reversed, as you have to drop the access panel before you can get to the two 10mm screws of the glove box.
2) Step 8 - on my car at least, I had three nuts holding the CD player in place, not two. Both of the nuts shown in Step 8 had to be removed.
Now, for the question:
1) How did you get to the one screw on the cooling servo that is hidden behind the AC line? Did you pry on the line a bit, or had some other trick?
BTW, I ordered all three of mine online from Lexus of Pembroke Pines, which came to about $385 including shipping. That's an average of less than $130 per servo, delivered, which I think is a pretty hard price to beat.
Leon
no, i didnt pry on the line, DO NOT DO THAT. if u puncture that line u gonna be pulling the dash out. i got a short stubby type screwdriver to do this one and i agree it is a pain in the *** to take out or to even put back lol.
i would have replaced all 3 also, def IMHO the smartest idea. nice price, did they give you a discount when you ordered as my local place wanted ALMOST 175 a servo for them
I was trying to stay consistent with Brian's terminology. The "cooling servo" is the temp servo on the passenger side, part number 87106-30341. It's shown as Item 22 in post 7 of this thread: https://www.clublexus.com/forums/gs-...part-pics.html
funny i have NEVER seen that thread. the early pioneers lol
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Joined: Dec 2005
Posts: 550
Likes: 25
From: ca
You bet, and your DIY thread helped me gain the courage to do it 
.
You got it. I couldn't figure out why I couldn't find the two screws you mentioned in step 1, then I realized I had to pull the access cover off first, which was not till step 3 .
Great, I can't wait .
No, that's their regular price. I scoured the net for about two hours looking for these servos and the timing belt stuff, and these guys came out to be the lowest by far for both.
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i mean that as in, only someone actually using it would notice i mis-sorted steps 1-4
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i got a short stubby type screwdriver to do this one and i agree it is a pain in the *** to take out or to even put back lol.
.
i would have replaced all 3 also, def IMHO the smartest idea. nice price, did they give you a discount when you ordered
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From: NY
all my servos are messed up i here notices coming from all of them i went to the website but couldn't find them can anyone send me a link also this is off the subject but my oil pan is leaking there oil all over how do i fix this and where do i buy the parts thanks
You bet, and your DIY thread helped me gain the courage to do it .
You got it. I couldn't figure out why I couldn't find the two screws you mentioned in step 1, then I realized I had to pull the access cover off first, which was not till step 3.
Great, I can't wait.
No, that's their regular price. I scoured the net for about two hours looking for these servos and the timing belt stuff, and these guys came out to be the lowest by far for both.
.You got it. I couldn't figure out why I couldn't find the two screws you mentioned in step 1, then I realized I had to pull the access cover off first, which was not till step 3
.Great, I can't wait
.No, that's their regular price. I scoured the net for about two hours looking for these servos and the timing belt stuff, and these guys came out to be the lowest by far for both.
lol...i dunno the write up was long, i guess i got confused lol
try ANY HVAC supply house for a stubby screwdriver. that make some good ones, if you have a Johnstone Supply in town i can give you the exact part # to the one i used (i borrowed it off our shelf)
thats a good price.
as far as your oil pan....depends.find out where its leaking from and deal with it from there
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Joined: Dec 2005
Posts: 550
Likes: 25
From: ca
On a similar topic, has anyone actually figured out what makes the servos noisy? The reason I ask is that after pulling the servo out, the engineer in me wanted to figure out why it was making the clicking noise. I opened up the servo and saw that the gears were all misaligned, with the big gear barely touching the driving gear. It had a lot of axial slop, so I put in a small washer (about 0.015" thick), put it back together, added four #6 screws to hold th ebody together, and the clicking stopped. So now I wonder if this is a real fix or a bandaid. It doesn't matter too much, as my order of three new servos is in the mail, but I just wonder if anyone has had any luck fixing these servos (and had longterm success)? It would sure be cheaper than the $120 per servo...
I managed to get to the screw last night. I actually could not use the short stubby screwdriver, as the handle was too fat, and got wedged between the AC pipe and the blower unit. So I had better luck a short narrow screwdriver, just a bit bigger than a jeweler's screwdriver.
On a similar topic, has anyone actually figured out what makes the servos noisy? The reason I ask is that after pulling the servo out, the engineer in me wanted to figure out why it was making the clicking noise. I opened up the servo and saw that the gears were all misaligned, with the big gear barely touching the driving gear. It had a lot of axial slop, so I put in a small washer (about 0.015" thick), put it back together, added four #6 screws to hold th ebody together, and the clicking stopped. So now I wonder if this is a real fix or a bandaid. It doesn't matter too much, as my order of three new servos is in the mail, but I just wonder if anyone has had any luck fixing these servos (and had longterm success)? It would sure be cheaper than the $120 per servo...
On a similar topic, has anyone actually figured out what makes the servos noisy? The reason I ask is that after pulling the servo out, the engineer in me wanted to figure out why it was making the clicking noise. I opened up the servo and saw that the gears were all misaligned, with the big gear barely touching the driving gear. It had a lot of axial slop, so I put in a small washer (about 0.015" thick), put it back together, added four #6 screws to hold th ebody together, and the clicking stopped. So now I wonder if this is a real fix or a bandaid. It doesn't matter too much, as my order of three new servos is in the mail, but I just wonder if anyone has had any luck fixing these servos (and had longterm success)? It would sure be cheaper than the $120 per servo...
i think this is what causes them to go out is the gears jumping off but if people let them grind so long they wear the teeth down and then they are fubared. i have heard you can regrease them and i did try but i never reinstalled it after i regreased it
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Joined: Dec 2005
Posts: 550
Likes: 25
From: ca
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Yup, that's sort of what I am thinking. I think that the spacer I added basically pushed the gear into a fresh contact zone that has not been ground away (yet!). But the rest of the gear is already worn, so it won't be long before the small new contact area gets worn away too. With all the work required to get to the servos, I'll just plunk in the new ones and try to sleep well at night .
.
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Joined: Dec 2005
Posts: 550
Likes: 25
From: ca
I wonder, given the crappy track record of these servos (they started clicking after about 5-6 years), if there is anything I should/could do to the new ones to increase their longevity, such as add grease or whatever. Of course I don't know if I'll keep the car another 6 years, but it sure would be nice to know that I'll never have to change these servos again. Maybe I'll tear apart the old ones and try to figure out what the failure mode was, and see if I can prevent it in the future.