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DIY on changing servo motors

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Old 12-29-08, 12:44 PM   #1
sakataj
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Default DIY on changing servo motors

EDIT: 12/22/10 since SEWELL changed their website here is the new link to the parts....just log in with your CL user name and the discount it automatically applied (special thanks to Darrel @ Sewell for the PDF's on the bottom of post # 1 for OEM removal for passenger/drivers side)

http://lexus.sewellparts.com/accesso...2001/2729.html


this was a very time consuming DIY because i stopped and took pics and documented it. will update when i get new servos in as last ones i got still didnt work (dont buy them used). i do suggest you do both even if only ones out as its annoying to have to do this ONLY 2 turn around and have to do it again when the other goes out to! i figured it was about time some1 did a DIY on this so here it is

if your gonna do the DRIVERS SIDE SERVO. here is a link to a gentleman that can help you out and his post
http://www.clublexus.com/forums/gs-s...rol-servo.html
HERE IS ANOTHER GOOD ONE ON THE DRIVERS SIDE GUYS
http://www.clublexus.com/forums/gs-s...ml#post4784932

here is the part # 87106-30351, Lexus OEM Damper Servo Sub-Assy
and a pic of it....
Click the image to open in full size.


OK SO FOR THE PASSENGER SIDE

Product #:8710630371 Lexus OEM Damper (For Mode) Servo Sub-Assembly, Quantity:1, Price:$143.38, Item Total:$143.38

Product #:8710630341, Lexus OEM Damper (For Cooling Unit) Servo Sub-Assy, Quantity:1, Price:$141.31, Item Total:$141.31

i did not replace the air recirculation servo (step 12 and 13, this is the servo that brings in fresh air from outside the car or recirculates old air in the car) as most of us wont be either (for some reason its NOT prone 2 failure like the other 2 are) but i included it incase some1 does need to replace it or just wants to know where it is!



BTW IF AFTER REPLACING THE SERVOS ANYONE HAS ISSUES OF THE HEAT WHEN SET TO 75+ BLOWING IN DEFROST EVEN THOUGH ITS NOT SET TO DEFROST OR THE MODE SERVO NOT GOING INTO THE CORRECT MODES REGARDLESS OF WHAT ITS SET AT CHECK OUT POST # 141









1st and 2nd step ....should be able to pull this out. it just pops out after you unscrew the bolts....disconnect all lights/plugs on it or at least unhook them
Click the image to open in full size.
Click the image to open in full size.

3rd and 4th step....i think this is a 10 mm bolt. unscrew these
Click the image to open in full size.
Click the image to open in full size.

5th and 6th step....unscrew bolts holding glove box on there are 3 SCREWS i know if u look at pics you'll think there are 4 but one pic just shows the same screw
Click the image to open in full size.
Click the image to open in full size.

on 7th step...you'll see the metal tabs that will hold it in AFTER you've unscrewed it, they just pop or pry out. UNHOOK NOT UNPLUG SRS from glove box (YELLOW WIRE) this is your passenger side airbag and you don't want it blowing off in your face so just unhook it from the glove box and push it back outta the way, unplug glove box light (now might be a good time to upgrade the lighting or the bulb)
Click the image to open in full size.

8th and 9th step....you'll be unscrewing cd player (again i think its 10mm bolts i cant seem to find mine to verify oops)
ONLY 2 BOLTS ON CD PLAYER, ONE ON EACH SIDE
Click the image to open in full size.
Click the image to open in full size.
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File Type: pdf 2.pdf (638.6 KB, 460 views)
File Type: pdf sakataj_1.pdf (97.8 KB, 352 views)
File Type: pdf sakataj_See_page2_no14.pdf (131.4 KB, 343 views)
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Last edited by sakataj; 02-19-13 at 07:35 AM..
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Old 12-29-08, 12:46 PM   #2
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10th and 11th step....unhooking cd player. after cd player is unbolted it will slide out (towards you) and be left dangling on the plug
Click the image to open in full size.
just unplug it
Click the image to open in full size.

12th and 13th step...air recirculation servo. if u look to the left on the 13th step u can see the other servo (will update which one it is later)
UNLESS YOUR REPLACING THE AIR RECIRCULATION SERVO YOU DONT NEED STEP 12 MOST PEOPLE WONT NEED THIS STEP
Click the image to open in full size.
Click the image to open in full size.


14th and 15th and last pic....these are the MODE SERVO, it is what switches your air from ground,face,defrost,etc etc
Click the image to open in full size.

MODE SERVO- different angle (looking straight at glove box, i turned camera to left facing drivers door and snapped this pic)
Click the image to open in full size.

MODE SERVO- pulled wiring harness up out of my way
Click the image to open in full size.


16th step....pull wires from cd player/glove box light and etc OUT of the way
Click the image to open in full size.

....unscrew and remove MODE SERVO Click the image to open in full size.

this is what the pic will look like if your looking straight at the glove box AFTER you have removed the MODE SERVO
Click the image to open in full size.
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Old 12-29-08, 12:54 PM   #3
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THIS DOES NOT REQUIRE REMOVING THE BLOWER WHEEL OR FILTER BUT I DIDN'T REALIZE THAT UNTIL I HAD ALREADY DONE ALTHOUGH DOING SO WILL GIVE YOU MORE ROOM DOWN THERE SO I DO RECOMMEND YOU GO AHEAD AND DO THAT AND WHILE YOUR IN THERE INSTALL A NEW, CLEAN FILTER
Blower wheel removal....
17th step..i assume everyone knows how to remove a cabin air filter, if not check out this link
http://www.clublexus.com/forums/gs-s...ts-of-pix.html
18th step....mine is already removed in this step
Click the image to open in full size.
Click the image to open in full size.

19th step....you'll see a plug in the first pic
Click the image to open in full size.

20th and 21st step....just unplug it and let it hang for a sec
Click the image to open in full size.
Click the image to open in full size.

22nd, 23rd, and 24th step....3 screws hold the blower wheel up
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

25th and 26th step...u can see screws and plug on here, while the blower wheel is down i would advise to clean it off
Click the image to open in full size.
Click the image to open in full size.
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Old 12-29-08, 01:00 PM   #4
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27th, 28th, 29th, and 30th step....pry plastic shroud off white box (actually don't pry, has tabs u can put a flat head under and pull up WITHOUT breaking to release this) need to do this so you have room to get to the servos
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

31st step...white lid off COOLING SERVO EXPOSED
Click the image to open in full size.

33rd step....with the first one removed you can now see the COOLING SERVO you'll be replacing. if u follow the aluminum a/c lines down to where they bend, look to the left. that little black box is the COOLING SERVO you'll be replacing
Click the image to open in full size.

34th step....i had 2 use a small phillipshead screwdriver like one we sell at work to get to the back servo
Click the image to open in full size.
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Old 12-29-08, 01:05 PM   #5
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35th and 36th step....crawl under dash and unscrew the COOLING SERVO....takes some finagling to get to this one
Click the image to open in full size.
Click the image to open in full size.

reinstall and screw the NEW servos in....make sure you put the white arms on the servos INTO the tracks they came out of (grooved white plastic piece you'll see it when you take them out) BEFORE reinstalling glove box,cd player,etc be sure you check these (mine jumped outta the grove the first time) turn on car and run through air flow directions etc..... then reassemble the reverse way! last pics are of ONE of my mechanics helping me....thanks wes
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Old 12-29-08, 01:12 PM   #6
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in on one.

the servo you are replacing is the one for temperature (mixes hot and cold air) on the passenger thread.

have you tried lubing the bearing to see if the servo motor still works?
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Old 12-29-08, 01:27 PM   #7
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Quote:
Originally Posted by ElitistK View Post
in on one.

the servo you are replacing is the one for temperature (mixes hot and cold air) on the passenger thread.

have you tried lubing the bearing to see if the servo motor still works?
well im ACTUALLY replacing BOTH servos since you didn't read the thread as i do say that. no i didnt, im just replacing them, im tired of messing with them!
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Old 12-29-08, 03:38 PM   #8
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Quote:
Originally Posted by sakataj View Post
well im ACTUALLY replacing BOTH servos since you didn't read the thread as i do say that. no i didnt, im just replacing them, im tired of messing with them!
well i ACTUALLY did read your thread and i'm simply stating that this motor you're replacing is the servo temperature. just filling in the details for you scottwax no need to jump into conclusion.

Quote:
Originally Posted by sakataj View Post
33rd step....with the first one removed you can now see the other servo you'll be replacing (again forgot which is which but will update when i fix them again). if u follow the aluminum a/c lines down to where they bend, look to the left. that little black box is the other servo you'll be replacing
Click the image to open in full size.
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Old 12-30-08, 06:26 AM   #9
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Quote:
Originally Posted by ElitistK View Post
well i ACTUALLY did read your thread and i'm simply stating that this motor you're replacing is the servo temperature. just filling in the details for you scottwax no need to jump into conclusion.
IM ALSO REPLACING THE MODE SERVO....it is the 2nd one you look at! the pic u quoted even says AFTER YOU REMOVE THE FIRST ONE you can see the 2nd one!

31st step is the temp servo as your saying? is that correct? (i was gonna update that when i got the servos back in) BUT what im saying is step 22 is A DIFFERENT SERVO (and if your saying 31 is the temp servo then 33 is the mode servo BUT AGAIN I WILL update the names when i get them back in) soooooooooo 2 different servos being replaced and i even outline the 3rd servo for just a sec!
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Old 12-30-08, 06:59 AM   #10
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sakataj great writeup! Glad you took the time to share this with us. I know it will come in handy and I have included it to the DIY sticky.
Thanks again
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Old 12-30-08, 07:52 AM   #11
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Quote:
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sakataj great writeup! Glad you took the time to share this with us. I know it will come in handy and I have included it to the DIY sticky.
Thanks again
yeah no problem n ty nigel for the sticky lol. i really do truly believe this forum is for us to help each other, just think some people forget about that from time to time. u know after getting off the phone with you, u really are a nice guy man. when i open that one up i will send the pics to you and i will try and find that other post i was telling you about where someone did open them up!
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Old 12-30-08, 08:17 AM   #12
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Great job sakataj, thanks for the great info and pics
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Old 12-30-08, 08:24 AM   #13
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Brain, thanks for the writeup again and yes this site is very helpful for all of us. If I did not have this site my gs would still be completely stock lol. It was very cool talking with you it would be great to have you closer so we could hookup and work on the GSs together. It is always great talking or meeting another member here on CL And yes any help with the lube process for the motor is very much appreciated.
Nigel
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Old 12-30-08, 09:01 AM   #14
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Let me make this clearer:

I don't care that you're replacing the mode servo, I just simply stated that the picture I quoted is the passenger temp and asked if you have taken apart of the servo motor to try to service it.

Maybe if you organize your steps and pictures a little bit, you can stop confusing yourself (btw I quoted a picture from step 33 not step 31).

cliffs:
step 31-> mode servo
step 33 -> passenger temp servo

either way great write up.

Quote:
Originally Posted by sakataj View Post
IM ALSO REPLACING THE MODE SERVO....it is the 2nd one you look at! the pic u quoted even says AFTER YOU REMOVE THE FIRST ONE you can see the 2nd one!

31st step is the temp servo as your saying? is that correct? (i was gonna update that when i got the servos back in) BUT what im saying is step 22 is A DIFFERENT SERVO (and if your saying 31 is the temp servo then 33 is the mode servo BUT AGAIN I WILL update the names when i get them back in) soooooooooo 2 different servos being replaced and i even outline the 3rd servo for just a sec!
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Old 12-30-08, 09:08 AM   #15
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Quote:
Originally Posted by GS300Rich View Post
Great job sakataj, thanks for the great info and pics
ty. i know for as long as i have been on here, i have heard people asking about it and never seen a real write up or pics or much on it so i figured i would step up to the plate with it! i was semi clueless before i did it, but its VERY simple and hopefully this will help ne1 else who has ?'s bout it!

Quote:
Originally Posted by nsf0607 View Post
Brain, thanks for the writeup again and yes this site is very helpful for all of us. If I did not have this site my gs would still be completely stock lol. It was very cool talking with you it would be great to have you closer so we could hookup and work on the GSs together. It is always great talking or meeting another member here on CL And yes any help with the lube process for the motor is very much appreciated.
Nigel
no problem.....i dunno y u keep calling me BRAIN though, its brian
ok u making the jokes to easy....so lets see i have a hookup and work joke and a lube process joke huh....nah just kidding. yeah i would love to have a tenn meet but i dont think there are that many of us! maybe someone can organize a nation wide meet? that would be wicked! yeah next time i go see my cuz in tampa i might stop by....or if u ever up here holler at me, u got my #'s
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Old 12-30-08, 09:08 AM
 
 
 
 
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2004, 300, ac, clublexus, damper, dash, gs, lexus, lubing, motor, motors, recirculation, rx330, screw, servo, subassembly

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