Front Diff Grinding/Groaning Cyclical Noise
- Thread starter MikeYQM
- Start date
Salvo Jimmy
Member
As I read it, a production change was made which could indicate the replacement diff is different
This is great news if indeed there is a design change. However, now convincing the dealer to perform the work, well that is a whole different story. Went in to get his done but they said they could not duplicate it. Right, I am here complaining about it because I like hanging out at your garage? :frusty:
Basically, unless you have a dealer desperate for work or the diff is literally sounding like a foghorn, good luck getting it replaced. May be it is just the dealer near me.
Basically, unless you have a dealer desperate for work or the diff is literally sounding like a foghorn, good luck getting it replaced. May be it is just the dealer near me.
I have a 2011 AWD Limited that seems to have the same issue, as well. Thought it might be a wheel hub/bearing.
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dedonderosa
Member
i would hope so ya know, not just throwing another faulty diff in. there is a new part number as you can which usually means there was an update or a change in that part
I called the dealer this morning, and I'm not sure the service advisor I talked to is actually familiar with the concept of a "car." Oy, this is going to be a massive waste of time. I was prepared to throw in the towel and do the repair myself, but with the new TSB posted by dedonderosa, sounds like the dif needs replaced.
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So the new TSB for replacing the differential doesn't cover before 2016??
I have a 2015 and it's been making this noise since day 1. I had the bearing replaced in December and it's back slightly worse than before. If there is indeed a new part revision, I don't get why it doesn't apply to earlier 5th gens...
I have a 2015 and it's been making this noise since day 1. I had the bearing replaced in December and it's back slightly worse than before. If there is indeed a new part revision, I don't get why it doesn't apply to earlier 5th gens...
i got my front diff replaced and it feels so much smoother and quieter now
it also seems to have increased my fuel efficiency about 1mpg, I'm now back to about the same mpg as when it was still new. it had dropped from usually being around low 17.something when newish to about 15.7-16ish mpg before i replaced the diff at 59k miles. new tanks have been back in that 17.something range.
it also seems to have increased my fuel efficiency about 1mpg, I'm now back to about the same mpg as when it was still new. it had dropped from usually being around low 17.something when newish to about 15.7-16ish mpg before i replaced the diff at 59k miles. new tanks have been back in that 17.something range.
armartinez
New member
2013 Limited w/ AWD?
I see my year listed in the bulletin and it says this only pertains to 2WD mode. Could this be the same issue on a 2013 Limited w/ AWD?
The symptoms are almost identical to what I am hearing and my mechanic cannot hear what I am describing. He blamed the brake pads that he replaced a year before with higher quality pads for free but the noise still occurs.
I see my year listed in the bulletin and it says this only pertains to 2WD mode. Could this be the same issue on a 2013 Limited w/ AWD?
The symptoms are almost identical to what I am hearing and my mechanic cannot hear what I am describing. He blamed the brake pads that he replaced a year before with higher quality pads for free but the noise still occurs.
Salvo Jimmy
Member
What exactly are you guys feeling/hearing with this?
I have a '19 TRD Off Road that was produced after the VIN listed in the most current TSB.
I have what could be described as a "tire noise" at about 35-40 mph that goes away when 4HI is engaged. No vibration/grinding or anything related, just what sounds like a slight rumble from Nitto Terra Grapplers.
I have a '19 TRD Off Road that was produced after the VIN listed in the most current TSB.
I have what could be described as a "tire noise" at about 35-40 mph that goes away when 4HI is engaged. No vibration/grinding or anything related, just what sounds like a slight rumble from Nitto Terra Grapplers.
When I ordered my 4Runner, I talked to the parts department about a 2" leveling kit. They asked me to sign a waver that if it causes a differential noise, it's not their responsibility and that I have to have it removed at my own expense before Toyota would warranty the differential. They only saw it on one other vehicle, but didn't want to take responsibility for it. After install, I have had no issues.
it's similar to tire noise but not exactly the same, for me there wasn't mreally much to feel unless you were really paying attention to it
i most noticed it when ambient temps were low when i was decelerating/coasting through about 30mph and 60mph, and it usually happened after i had been using my 4wd recently and would go away if i shifted back into 4wd
they replaced by entire front diff and the sound went away and the front also feels smoother and my fuel efficiency went up about 1mpg
EddieV4runnin
New member
Anybody got a video of the noise???
I can not seem to find one on youtube.
My noise is right at 40 mph and is very subtle but does go away when 4HI is engaged. Noticed probably about 2500 miles ago, I am at 7000 now.
Since it is so quiet and my truck falls after the supposed update, not even sure if it is worth trying to get taken care of.
My noise is right at 40 mph and is very subtle but does go away when 4HI is engaged. Noticed probably about 2500 miles ago, I am at 7000 now.
Since it is so quiet and my truck falls after the supposed update, not even sure if it is worth trying to get taken care of.
These bearings are failing that early?? You felt yours at 5000 miles? Holy crap.
On a side note, why the hell are they replacing an entire front diff for a needle bearing? That seems a bit invasive.
Mine was good until just about 33,000 miles (I'm around 35,000 now), and this is exactly where mine is making the noise. It either disappears or is covered by other sounds once you're over 50-55mph; and goes away as soon as you engage 4HI, only to reappear when you go back to 2WD
With that being said, my ECGS bushing is sitting in the garage at the moment awaiting install.
I think the switch to replacing the whole diff instead of just the needle bearing is to eliminate any user (technician) error. Especially since people are experiencing bearing failure more than once, it's easier for a factory TSB to say "replace the whole diff", that way, if there's another bearing failure on that vehicle they can be confident it is a parts failure, not a labor failure. Audi/VW has made similar changes over the past few years, specifically in regards to transmission repairs.
Teamoatmealpie
New member
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Mine appears in low temps (didn't hear it all spring, summer, or fall) at 40-55mph especially under deceleration/coasting. The part where mine is a little different is that I can go into 4WD and come back out and the noise will be gone for the remainder of the trip sometimes. That is the only thing that doesn't line up. I guess I'll wait until our temps get nice and low and take it back in. The dealer tried to blame the A/T tires last time. The noise was on both the old and new tires (TRD Pro Terra Grapplers), so I rolled my eyes and made them document that I brought the vehicle in before the warranty was up.
