The Dreaded Throwout bearing chirp

I’m new to this and my tacoma is making the same chirping noise. What is the TSB fix

 

The TSB (toyota service bulletin) is whatever they recommend for a known or common issue. In the case of the throwout bearing, its basically new fork, bearing etc. link to another forum. The root of the problem is that the RA60F, has an aluminum quill that the steel throwout bearing sits on, so it eats grooves in the AL when there is no pressure. so if there is already damage done, likely it will come back somewhat quickly as soon as the grease gets moved around a little bit. I personally went with the URD throwout bearing kit. I put it in at the end of 22' and no real issues yet after 60k miles. Its kinda pricy but so is your time taking a trans on and off. Seems like the best and easiest solution.

 

I ended up Getting the tsb parts but installed a centerforce stage 2 clutch’s been 50kmiles no issues

 

2011 releace bearing noise from new when cold, 155,000 miles later releace bearing noise when cold from the same bearing. Maybe some day when it needs a clutch I'll replace it.

 

well when is the bearing gonna take a complete shit. Because it’s already starting to by your post. And reason to pull the trans which is free labor is a failed or failing component regardless of what particular component in the circuit that is.

It is wise to replace other components while you’re in there, especially given their cost. Or upgrade if the truck is upgraded. Which is generally what is done.

 

I'm in Maine it gets very cold up here -8 this morning. From brand new there was rattle from the bearing when cold, in a minute it would go away never had ever the slightest issue with it's functionally and still don't. If it ain't broke don't fix it. Now it's only done this for the past 155,000 miles so I think I'll take my chances until it needs a clutch.

 

I have a 2011 Access Cab 4x4 with the 4.0 and my throwout bearing has started to chirp. So, naturally I turned to the forum for diagnosis. Turns out, it is very likely my TOB. So I started digging and found the TSB (http://www.fjcruiserforums.com/foru...n-aids/39379d1293636162-throwout-bearing-trouble-6-speeds-fj-clutch-bearing.pdf) and the URD upgrade/repair kit (https://urdusa.com/throwout-bearing-upgraderepair-kit-2005-tacoma-v6-6-speed/). So I got to thinking, can I combine the two like @Alexander20 did and seemed to have success? Makes sense to replace the aluminum sleeve with stainless for better wear resistance. I wanted to make sure the larger, new TOB that is part of the TSB was included in the current URD kit (it is) so that the other replacements, fork support and slave cylinder were still size matched, they are. However, what I really wanted to share was URD's response:

My original message:
Hi, I am looking to repair the "chirping" throwout bearing on my 2011 Tacoma. It is my understanding that Toyota has provided a fix in TSB 3558 that includes an updated throwout bearing with a longer collar and make some other adjustments, such as fork support and slave cylinder to match the increased size of the newer TOB (3123060231). It is also my understanding that your kit uses the OEM TOB and machines it to fit the stainless sleeve. Does your current kit use the updated Toyota TOB, 3123060231, or are you still using 3123060230? I would like to follow the TSB as close as possible, but replacing the aluminum sleeve with stainless just makes sense. I want to make sure everything will work well together. Thank you!

URD's response:
We use the current bearing from Toyota and get it directly from the Toyota dealer.

The kit repairs a worn quill. There is no real fix for the chirping issue. When the clutch wears and gets thinner the fingers for the pressure plate move back toward the bearing. At some point the air gap gets used up and the fingers start making intermittent contact with the bearing face and presents as a chirp.

If the chirp is the only reason you are doing this, don't. Wait until it is time to replace the clutch. Replacing a perfectly good bearing with another one has a high chance of still having the chirp. It is not a bearing issue. It is an overall design flaw.

So by the sounds of it, there is no rush to repair the TOB for the chirp until the whole clutch system needs replacing or there are other symptoms...unless the chirp really bothers you.

 

If the chirp bothers you enough, use the Tilton setup with Kasbien's kit.

 

This thread is a relief for me. I have the chirp, goes away if I touch the clutch pedal slightly, then returns. I'm going to live with it until clutch replacement.

 

35,000km later, still no chirp after the URD Sleeve Kit and Toyota TSB repair combo.