07-07-2020, 01:30 PM
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#46
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Join Date: Mar 2005
Location: Huntington Beach, CA
Age: 50
Posts: 478
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Join Date: Mar 2005
Location: Huntington Beach, CA
Age: 50
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Thanks. I found the servo and it’s definitely stuck. My mechanic bought a replacement for me (the truck was in for a bunch of other things) but I’ll install it when I get a minute. It’s right out in the open and looks like a pretty easy job, unlike the passenger side.
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04 V8 Limited
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Coffee machine and crock pot equipped
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07-15-2020, 02:21 PM
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#47
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Join Date: Nov 2018
Location: New Bern NC
Posts: 101
Real Name: Richard
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Join Date: Nov 2018
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This is the most horrible job on a 4runner (maybe on every car). I have been putting off going anywhere near this until today.
My issue is the air con works perfect for all the car, but if I want heat it's only on the driver's side. Passenger side and the back vents blow cold air. I thought the issue was the bottom servo (airmix) and had purchased one many months ago and never put it on.
I had previously had a look and noticed the left screw was missing, either it worked its way out or someone had been at the system previously. To get to the really hard screw on the right of the servo I heated a chisel and melted a hole in the cabin filter slot. This worked and along with a scope I was able to remove the screw and got the servo out. I put the new servo in but unfortunately it didn't solve the problem, still no heat for the passengers.
Kinda well peeved at this stage, skinned knuckles and sweating like crazy... tip.. don't do this job on a 90 degree plus day. I figure it must be the top servo (for mode) and when I looked there is also a screw missing and the other two are loose. So someone has already had their hands at this and just didn't bother putting it back together properly. Not sure if I should put the money into buying the top servo just in case something else is the issue.
Any suggestions?
A big thanks to the op and his picture guide and also the tip about putting a hole in the filter slot it really made the job somewhat easier.
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2005 4Runner V6
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07-18-2020, 07:57 PM
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#48
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Join Date: Mar 2005
Location: Huntington Beach, CA
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Join Date: Mar 2005
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Strange. My driver’s side servo only had 3 of the 4 screws also. I’m the original owner so either it worked its way out on its own or was never there to begin with.
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04 V8 Limited
Lifted, lit, locked, protected
Coffee machine and crock pot equipped
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07-19-2020, 02:17 PM
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#49
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Join Date: Mar 2019
Location: Toronto, Canada
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Real Name: Ken
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Great write up and many thanks! Found it easier to use a 90deg angel grinder with a tungsten carbide burr to make the hole. All my screws were there but they were a little angry to come out... patience grasshopper.
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2008 SE 265/70/17 BFG. SpiderTrax 1.25" Wheel Spacers - Sold
2018 Blizzard Pearl Limited - Stock
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11-07-2020, 07:25 PM
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#50
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Join Date: Jun 2019
Location: Bay Area
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Just did this today. Super simple once you drill out the inside of the blower to access the 2 screws. Took me about 2 hours taking my time.
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04 V6 4x4. Eibach Pro Truck Shocks, OME 885, Icon 2" Springs. JBA UCA. 255/75/17 Kenda Klever AT/2. Spartan rear locker(removed). PCK. Hidden Winch
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11-16-2020, 01:29 AM
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#51
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Junior Member
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Join Date: Apr 2007
Location: Fremont, CA
Posts: 10
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Location: Fremont, CA
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Many thanks for the excellent instruction
I did it today for all three sevros. Left (one), right (two). I have all three failed and very ennoying like horse racing.
- 87106-35170 SERVO SUB-ASSY, DAMPER(FOR BLOWER) LEFT driver side
- 87106-35120 SERVO SUB-ASSY, DAMPER(FOR MODE) RIGHT TOP Pass. side
- 87106-35180 SERVO SUB-ASSY, DAMPER(FOR AIRMIX) RIGHT BOTTOM Pass. side
- Bought all three OEM for $270 from Ebay
- Total install time two hours
- I use solder welding to drill the hole, easy and fast and re-tape after.
Here are some picture for the left sevro (driver side)
Last edited by vxphan; 11-16-2020 at 02:44 AM.
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11-16-2020, 01:46 AM
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#52
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Join Date: Sep 2019
Location: Lafayette, IN
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Quote:
Originally Posted by vxphan
Many thanks for the excellent instruction
I did it today for all three sevros. Left (one), right (two). I have all three failed and very ennoying like horse racing.
- 87106-35170 SERVO SUB-ASSY, DAMPER(FOR BLOWER) LEFT driver side
- 87106-35120 SERVO SUB-ASSY, DAMPER(FOR MODE) RIGHT TOP Pass. side
- 87106-35180 SERVO SUB-ASSY, DAMPER(FOR AIRMIX) RIGHT BOTTOM Pass. side
- Bought all three OEM for $270 from Ebay
- Total install time two hours
- I use solder welding to drill the hole, easy and fast and re-tape after.
Here are some picture for the left sevro (driver side)
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Great work dude! I have one making a little clicking noise every once in a while, so I might need to get to this eventually.
The forum is weird for embedding pics, but should be able to copy the stuff below and it will display your pics here embedded in your post. To get embedding to work, I left clicked on the links, then left clicked the photo, then right click when it full sizes the image and chose copy image address, then wrapped that address in the [img] tags. I use imgur for photo hosting, makes it a bit easier to embed them into the forum. Kind of a hassle with the extra step, but I have found google photos to be a bit finicky with embedding here. I have a short bit written up on what I do if that interests you here: https://www.toyota-4runner.org/3549755-post34683.html
HTML Code:
[IMG]https://lh3.googleusercontent.com/pw/ACtC-3cN-hdCC1rAV8fhxvdURVTpSn4jNCOiTLOiO8utrU--oK8wE5KqgZLdWg4ybz3EC3bG2sUF4fB9PiqC8ECa8CHlKFrqZh95-dhpYasc-cwnVf2V6uAVnHegy4SmaJzfp4nH8WAYjFEBNFBCTcuZPEOqLw=w1210-h907-no?authuser=0[/IMG]
[IMG]https://lh3.googleusercontent.com/pw/ACtC-3fNT8NM5eZPs9K2ovBamKnkB2N1JaULEe1scw2m3GOWXIW4uBvom33w7_YeYtbDlh5THzEGhIe_WPuBz7eVLoKE8XEKdtleI6lksibXerV0_piqgD3aB-gl89zqCh6zgBXfLE26mSOMPG9TaWHb1_4iTQ=w681-h907-no?authuser=0[/IMG]
[IMG]https://lh3.googleusercontent.com/pw/ACtC-3ebepgxFjP6efD7neIRVMzG93CIFzEBD-8Ra3wsYV8e-eB-tALnZH1euhsIfAzFn-5uysmbRmiKTjAnltuhQAhEl2utDXTWmncblrhCr0NarZE33OE_730_k63uRpBUsFIg2gMrRK0xH1yp0ykpe2KtIA=w681-h907-no?authuser=0[/IMG]
Last edited by y=mx+b; 11-16-2020 at 01:48 AM.
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11-16-2020, 02:23 AM
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#53
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Junior Member
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Join Date: Apr 2007
Location: Fremont, CA
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Thank you y=mx+b for guiding me to embedded pictures. I am learning every day.
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11-16-2020, 12:43 PM
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#54
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Join Date: Jun 2019
Location: Bay Area
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Nice 270 for all 3. I paid like 300 for left two.
What does the driver side one do?
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04 V6 4x4. Eibach Pro Truck Shocks, OME 885, Icon 2" Springs. JBA UCA. 255/75/17 Kenda Klever AT/2. Spartan rear locker(removed). PCK. Hidden Winch
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11-17-2020, 12:23 AM
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#55
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Junior Member
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Join Date: Apr 2007
Location: Fremont, CA
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It is for the front blower motor.
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12-31-2020, 05:56 PM
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#57
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Join Date: Aug 2020
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First off, many many thanks to the OP for this, and for those who contributed additional ideas. I did the 2 servos on the passenger side today, and drilling the hole made this very doable and not such a terrible job. I have the correct air temp flowing again and from all vents (depending on where I set things) - and it's so nice to drive again without the noise!
As for removing the entire assembly, no. There are only a "few" bolts holding it in place, but it would be an unholy PITA to remove that entire assembly w/o completely disassembling the dash. Cut a hole where the cabin filter is and be done with it.
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04-02-2021, 06:25 PM
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#58
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Junior Member
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Join Date: Apr 2010
Location: DFW
Posts: 11
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Just wanted to say thanks to OP and everyone that provided tips on removing the pass. top servo: 87106-35120. The recommendation of drilling the hole saved quite a bit of time. I also left out that hard to reach bolt and don't see any negative effects currently.
I did manage to get a nasty cut but the A/C functions correctly now!
I do have the bad servo assy, if someone wants to attempt a fix and reuse.
PM me and we'll work something out on getting it to you.
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06-21-2021, 11:29 PM
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#59
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Junior Member
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Join Date: Jun 2021
Location: San Diego
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Real Name: PHILL
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Join Date: Jun 2021
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Excellent thread. I just got myself a 2005 SR5 sport, V8 4WD 4Runner in pretty decent shape with only 149k. It's my second 4th gen 4runner. This model does not have dual climate control.
The only major issue I've had so far is with the A/C blowing ice cold only while in LO temperature setting. In any other temperature setting but Lo the blend door opens up all the way and hot air comes out. There is no clicking and the servo arms move with ease.
After digging through many forum threads, I've replaced the cabin temperature sensor, climate control module on the dash , and today after reading through this thread, I tackled the blend door actuator. Unfortunately, everything operates just like before. I'm back at square one.
What else could be causing this condition? I'm completely stumped and have no clue what else to even check.
Any ideas would be appreciated.
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07-01-2021, 09:01 PM
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#60
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Junior Member
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Join Date: Jun 2021
Location: San Diego
Posts: 2
Real Name: PHILL
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Join Date: Jun 2021
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Update
Just an update for anyone having a similar issue. After chasing this problem, replacing the cabin temperature sensor and the blend door servo. My next checklist item was the ac amplifier. I took my dash apart to check the connections and part number. I also followed the air temp sensor wiring from the sensor to the ac amplifier and found one of the wires had snapped off pretty far along.
Low and behold I reconnected it and problem solved.
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