3rd Gen Poll: Rear End Noise howling when feathering throttle

I told them I needed my phone charger. I also walked in with my safety glasses on my head.(always clipped to my hat due to my job) . He asked me to put them on for safety

 

So I read TSB-0057-13 from April 26,2013. So kindly posted by skiploder. This sounds exactly identical to what our 3rd gen Tacomas are going through. This seems to be a common issue that was never fully addressed and seems to even cross over from the 2nd gen to the 3rd.

My question is:

1) Are we dealing with morons who don't fill the differentials to the correct level?

2) Improper/faulty gear sets?

 

Found this too.

https://www.tacomaworld.com/threads/tsb-0057-13.295604/

https://repairpal.com/does-anyone-e...ling-noise-from-the-rear-end-at-58-60-mph-602

https://www.tacomaworld.com/threads/rearend-whine.407373/

https://www.tacomaworld.com/threads/noisy-rear-diff.354666/

 

All kidding aside, the context in this is that Toyota has had rear diff "problems" going back to the inception of the second gen trucks. In looking back through the second gen threads I was slightly shocked at the number of posters who claimed it was of no concern....however the same exact issue is causing some second gen owners to mock the third gen folks....or to recommend people go back to the second gen. Incredible.

To reinforce your point, the diff howl in the third gen is happening in the same exact circumstances as it was in the second gen. A TSB was issued that covered 9 model years of second gen tacomas to address this same issue.

I spoke to the same tech who gave me the info this past weekend. I'm confident in his explanation of the howl, the long term ramifications and when it will be officially recognized by the manufacturer.

 

Great research. The apple doesn't fall to far from the tree as they say. This repeated pattern of negligence is continuing on. I wonder how many with the differential whine were produced at the Baja, Tecate facility. Also why is Toyota using such a lightweight gear oil 75W85?. Fuel economy is one theory. This was made to be a TRUCK! not a Prius. I recall my 06 Nissan Xterra had

$29 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75W-90. Not a big difference, but better protection nonetheless.

I spoke to my dealership manager today. They are " working" on a solution for me. But he made it point two say " strange that it happend twice to you" I told him. Maybe so. But there information is out there. This isn't something new. Asked him if he wanted to inspect my tires and truck for any signs of neglect or serious tire wear from burn outs. ha

Said hes been with toyota 17 years blah blah. I should ask him why a PDS/PDI sheet wasn't filled out. Thus in violation of Toyota's TSB's and policy.

 

Talk to a tech who's repaired these, they will tell you straight what it is.

 

I went on a test drive with a tech. He said " I've seen this before" " we got another one" but he didn't exactly say if it was low fluid or bad gearing. He acknowledged the problem. " could be the pinion bearing". They all acknowledge the gasket recall because there is a OFFICIAL TSB out, but pressing them for more information is like trying to be a police officer questioning a gang member. Ain't nobody gunna snitch.

Hard to find a tech. Everyone acts stupid as f@$% when you press the issue.

Whats the word on your end?

 

I've been to 7 different dealers (6 in Wisconsin and 1(Carson city,Nevada) I hit 10k miles in Nevada while on vacation. None of them never heard of any problems with the differential or problems with a howling noise. I can't believe I'm the only one in SE Wisconsin (Kenosha-Milwaukee corridor) with this problem! I call total bull shit! You can print it ! Bull shit. People on the chat rooms complaining daily and zero ever in Milwaukee area? Bull shit!

 

Toyota's stance. Maybe joke around with them and say " maybe its the floor mats like on the Prius". I said that to the tech and he shut up with a grin on his face. Ha

 

On 2nd gens....incorrect backlash. Ring and pinion noise.

On 3rd gens....early issues with improper lubrication.....also seeing incorrect backlash.

Said they took an 06 in on trade with 150k miles on it. Howled between 55 and 60 mph. Original tranny. Draw whatever conclusions you will of that.

 

Mind blown..... you're telling me that because fluid wasn't filled and pouring out of the fill plug due to incompetence, they'd rather replace differentials.

Their cost for 1 quart has be very cheap..4.2 quarts.

 

Do they have a choice? He was very clear that the underfilled fluid was a 3rd get phenomena.

But noisy setups know no inter-generational bounds......fact.

This clears some things upon for me:

(1) The recall is due to leaks and a lack of diff lubrication. There noise may or may not be present (or perhaps a better word is "noticeable").

(2). The recall is completely separate from the howl/whine. The howl/whine has existed at least since 2005 in it's current state. It's my ASSumption that Toyota plays the waiting game and sees how many people report it. If it's reported enough, they issue a TSB to address the issue to deal with those people who notice it. The key here is that all Tacoma differentials between 2005 and 2017 have an acknowledged noise under very light load at a certain speed. There is no arguing it, the second gen TSB negates any emotional argument a second gen supremacist may claim to the contrary.

And truth be told, noises or not, there is no evidence of high failure rates in these trucks for this component.

During my search, I have also found ample testimony from some first gen owners who have at times noticed a similar noise. I'll post more later when I have time to sort out the different accounts.

 

That 2005 date coincides with your rsearch.

 

Hmm .. again 7 dealers told me they have seen zero of these trucks. .. again 6 of those in Milwaukee metro are... I call bull shit. The only reason they are doing anything on mine is I told Toyota and the dealer with my truck that I will continue to come in every week if not twice a week till it's fixed. If it's howling it's damaged. You must not know or seen gear damage. If a catastrophic failure happens in the differential will severely injure or kill passengers and or others in the path of the vehicle. Is that extreme? Yes. But what can happen will happen. It's to prevent catastrophic failure and save lives. Also it's a new vehicle. I don't care if you think it's normal! News flash it's not. It's damaged! I shouldn't have a $40k truck that fails in 4 years. That's why we buy Toyota. If I wanted a garbage vehicle I'd buy a $15,000 Kia. I bought a Toyota for quality and craftsmanship that frankly is gone.

 

Did you forget to take your meds?

Don't forget that the active community here represents a tiny fraction of the total people who own Tacomas.

 

Get ahold of yourself. I don't mind a good rant, but I suggest next time you pop off and accuse someone of something, make sure you understand what the hell you just read.

Otherwise you come off as unhinged and ignorant....or is that what you were aiming for?

9 model years of gen 2s affected....plus 2 additional second gen model years reporting the noise but not covered by the tsb.....show us all the catastrophic diff failure rates associated with this noise. Go on, I'll wait....

Now go back and reread what I wrote. Do it slowly. Read it out loud if need be. Then read your dumbass post and try to pinpoint where your comprehension failure kicked in.

 

Unfortunately your issue will not be resolved with a replacement rear end. Mine was just replaced it whines just as loud if not slightly louder. Then they will open a TAS case and claim it is normal.
They have engineers there is a way to solve the issue!

 

Rear end replaced whine still exists....

 

So for everyone with this issue we all need to contact Toyota. Post on social media, get in Twitter and make this public. They won't do anything if they are not pushed.

 

Please list all your credentials and experience that allows you to tell beyond a shadow of a doubt your differential is broken... Cause I've got both and don't think there's an issue. I'm gonna drive my truck until the wheels fall off, replace the hubs, and drive it a little longer.