Toyota Sienna and Rav4 Viscous Coupler bearing noise the ULTIMATE REPAIR GUIDE

Toyota Sienna and Rav4 AWD very common failure is the bearing in the Rear Viscous Coupler goin bad. You know you have this issue because of the noise/growl coming from the rear of the vehicle while driving. It's louder or more pronounced with speed and only gets worse over time. It never comes and goes, it's always there.
Mechanic shops charge anywhere from $2800-$3200 for this repair (at least in Utah that's what we were quoted). Doing some math against even the lower of the 2 quotes you are WAAAAY ahead to buy some tools from the list below and do the work yourself. You'll have some new tools, some new skills and the confidence to tackle projects in the future! WIN/WIN/WIN:
Starting with $2800 you will need the part and the following tools (Amazon Affiliate Links):
$55 - Toyota Bearing 90363-95007 - amzn.to/3xvYcs9
$6 - Permatex Gasket Maker Black - amzn.to/3Ue1V6E
$170 - 12T Hydraulic Press - amzn.to/49uAxFB
$38 - Impact Socket Set Metric with extensions - amzn.to/3TPSkkT
$290 - Dewalt 20V Max Impact Driver - amzn.to/3PUahh0
$140 - Floor Jack - amzn.to/4avf1SG
$58 (4 total) - Jack Stands - amzn.to/43TR7xA
$16 - Dewalt Screwdriver Set - amzn.to/49wlj2Q
$5 - Small Pick Set - amzn.to/3TRK18j
$25 - AIM Penetrating Lube - amzn.to/3U3jPW0
(** Alternatively you could buy the whole viscous coupler here: amzn.to/49tP2tu for $300 **)
$803 Total if you don't already own any of the above tools. That saves you -- $1997 over the lower repair price by doing the job yourself! --
No brainer right?!?!?!
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Chapters for Video:
00:00 Intro
00:15 Explaination of the issue - failed bearing
01:02 Tools and explanation of how hard this job is - it’s NOT that hard!
02:21 Parts to remove to expose the Viscous Coupler Part for removal
03:33 Viscous Coupler removed the van and on the workbench
04:18 Bearing that needs to be replace - Toyota Part Number: 90363-95007
04:39 Pulling the Viscous Coupler apart -
04:47 Why do this job yourself? Saving HUNDREDS of Dollars!!! Maybe even thousands $$
05:33 Pulling the viscous coupler apart - time lapse
06:47 Using a hydraulic press to expose the bearing (90363-95007)
07:30 Snap Ring removal that hold the bearing in place
07:39 Pounding the bearing off using a screwdriver and hammer
07:55 Bad bearing and what it sounds like out of the viscous coupler
08:10 Cause of the failed bearing - Water and Salt inside the viscous coupler
09:33 The half way mark - disassembly is now complete - Now to clean the housing for the new bearing
11:49 Process for putting it back together to avoid this failure in the future - gasket maker sealant is the key
12:19 How to press the bearing back into the Viscous Coupler without damaging it
13:50 Pressing the bearing on
16:11 Taking a closer look after the bearing is on then putting the snap ring on
17:32 Putting the snap ring on
17:37 Sealant used for this - Permatex Gasket Maker Ultra Black
19:05 Putting the outer casing over the bearing and pressing it all back together
19:24 Pressing the parts back together - a VERY important note not to forget! Proper alignment is key
19:45 What the final assembly looks like - repair Viscous Coupler complete
21:54 Discussion about how to put it all back together - final assembly
24:16 WHAT TOOLS DO YOU NEED? here’s the list!
26:10 THE ONLY PART I BOUGHT to do this job! Toyota 90363-95007 (link below)
26:36 Viscous Coupler SOUND Before and After the repair
26:46 Outro and test drive

[@yourdieselspecialists]

As always, nice work!!

[@dm1123751]

Great video Troy. Im sure this video will get a ton of views over the coming years.

[@troysgarage]

I think so too. Thanks!

[@jondawes7921]

Have you installed the bearing backwards, as in orange side out v orange side in?

[@gregbotlin4446]

Excellent Troy!

[@troysgarage]

Thanks 🙏🏼

[@tkajtsai1586]

Good job, vert detailed.

[@troysgarage]

Thanks! 🙌🏼

[@SILVA_Time]

❤

[@floppy-zk4td]

good afternoon, i have a Toyota Naoh 2008 model dba-zrr75w. and I'm having a problem. the code i got from a scan is DTC/c1299/99 cancellation of 4WD Control. could you advise me on my repairs ?

[@troysgarage]

This code refers to the size of one of the tires being different than the others. This could be as simple as low tire pressure in one or more tires. It could be that the incorrect tire size was recently installed as well - running on the spare could cause this code as well. If all tire sizes are the same and air pressure is good, it could be the 4WD Control ECU. But start with the simple items first. Hope this helps.
manualespurdy.cisdigital.com/Toyota/Rav4Aug2010/rm1322e/MANUAL.HTM/rm1322e/repair2/html/frame_rm0000020b500ex.html

[@jeffehlers9893]

I think I would just replace the whole copler. I know. More money but I think less labor. I don’t think my mechanic wants this job.

[@troysgarage]

I get it. I show this in case someone decides to tackle it on their own. You pay a mechanic for their expertise and their tools. 🤷🏼‍♂️