I have a 2017 TRD ORP w/KDSS and replaced by Bilstein 5100s with the Fox 2.5 DSCs.
Had them about 2000 miles now and started hearing this same clunk after the most recent overlanding camping trip.
It's coming from the front suspension for sure, just can't tell where it was.
I took off my wheels and gave a solid inspection looking for rubbing, friction, a stuck rubber bushing, something ... and came up with no ideas.

Happens usually when the rig has been off for a while and cold. Notice it a lot when starting in the morning, reversing slow and turning the wheel to back out of my driveway.
I live in San Diego so it gets "cold" at night, but not anything like the locations ya'll have in your bios.

Anyone have a solution yet. I might try calling Fox Customer Service, they have a location in San Diego.


Edit: Found this on Taco world, hopefully cross posting this link is allowed:
Clunk in front end with Fox 2.5 extended | Tacoma World

Not sure about the aftermarket Fox shocks, but my conversation with Toyota focuses on the OEM set for 19s and the master tech is leaning toward shock valve setup as the root cause.


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My 2020 trd pro does this as well, only turning right and it is most noticeable on roundabouts. I live in Green Bay so it is certainly below freezing.

Not too sure if it’s functioning as intended or if there is even a fix

Looks like my 2020 is doing this as well, more noticeable in the alley behind my house which has a few inches of snow and gravel. The odd light clunk while going over bumps slowly. Been around -10 to -15 celsius..
Has me holding off on modifying the suspension, perhaps I should take it in to just get it looked at.

2019 TRD 4Runner Pro (6800 kms) East Coast, Canada

At around the 2000 km mark I heard what could only be described as driving over freshly fallen snow and I only really noticed it at slow speeds, turning, braking and accelerating from a slow or stopped position. It could be best described as a swooshing sound. Hard really to describe unless your used to getting lots of snow.

Anyway, went to the dealer today and it appears that both of my rear shocks are defective. 2 - 3 week wait as parts need to come in from California.

I'm just throwing it out there in case anyone else should run into a similar situation.

T

I thought I was the only one that had this issue. I will be going to dealer and letting them know.

While the sound isnt great (but doesnt happen all that often) Im not convinced they will be able to come up with a solution that isnt a completely redesigned coilover. There are quite a few moving pieces and when heated up and cooled down allow for tolerances which I believe lead to the noise.

Also on further reading it sounds like Raptor owners deal with similar issues. Im guessing Fox tried to make something more durable for an OEM configuration and this is the result.

Im still going to bring my vehicle in so its noted on file, but not expecting a solution.

Mine will be dropped off the 23rd and picked up the 30th. The master tech is pretty confident he will be ordering replacement components. His initial thought was at least shocks, but may also include sway bar end links and bushings. What is troublesome is, it doesn't seem to be the whole population of Pro's affected.

ive a 17 tacoma trdpro, wonder if the shocks are the same?

Jason so the dealership is going to replace your Fox Shocks an ETC? All my dealership said was they would add me to the their complaints and then wait to see what Toy/Fox decides to do.. What dealership are you dealing with in Ohio? Thanks Cameron

Cameron - When I described the conditions and noise mine was making to the service adviser and then master tech, they confirmed that this is not new and said countermeasures range from just replacing the shocks to replacing shocks and all bushings and end links. They need to assess the severity, so I agreed to drop it for a week. This is Jim White Toyota of Toledo.

Thank you Jason.. Let us know how she's doing afterwards and if you get any more info from your tech at the dealership.. Thanks again Cameron

I just picked up a 2020 TRD Pro on Tuesday and noticed it on the drive home from the dealer. It had less then 20 miles on it. It is also in the -F temp

Took my wife’s 19 to the dealer last week for this problem as well. Only difference is it started doing it before it ever got into the 30’s here. More like low 50’s. They game me this informational bulletin I’m posting a picture of. Notice the date of May 2019 in the top right. They’ve known about it for a while. Seems to be coming mostly from the right rear in my situation. Gonna be taking it back as it’s rather annoying.

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I know external bypass shocks can make a clicking sound during operation, but that the nature of them. I didn't think internal bypass shocks made as much, if any, noise.

I'd like to hear this sound you guys are hearing.

here's a pretty good video that shows how these TRD pro fox internal-bypass shocks work.
YouTube


I had a clunking sound for years in the cold (I don't have TRD pro shocks, but I did spend a LOT of time chasing the noise down on my setup), and it turned out that there was some slop in the lower mounting bracket. It would get louder in the cold because the aluminum misalignment spacers would contract at a slightly different rate than the steel standoff for the lower rear shock. I found this by having a friend rock the truck by standing on the sliders and jumping up and down hard while I searched around under the truck. Once I found the source, I could put my hand on the shock and make the noise disappear. I finally added a very thin spacer, and it's been silent ever since. I actually found the perfect washer at the local home depot, after a long search online. It's called a 3/4" shim washer, and it fits over the mounting post of the shock perfectly.
https://www.homedepot.ca/product/pau...her/1000128967

I know the TRD pro fox's use rubber bushings at the lower mounts, but do they have a metal sleeve through the bushing? Is it possible for this to be rattling? The lower shock bolts don't work like you might think-- the bolt bottoms out inside a sleeve, and the gap for the bottom bearing or bushing is a fixed depth. If the lower mounting misalignment spacers are even slightly narrower than this, it will rattle, especially in the cold. I've got to say-- it was a VERY difficult sound for me to chase down. I did everything including rebuilding the shocks to try to get rid of that noise.... and the final solution wound up costing $0.88

Good luck guys! I hope you get this figured out soon. I used to HATE cold weather suspension noises.