Washboard Vibration during stopping or coming to stop

Like annealing the rotors?

 

I posted a link of the steps a few posts up, have a look

 

Thanks all for your replies, really appreciate the responses, in summary:

The issue only occurs in what feels like a feed back to steering at 30mph down to 20 or below, there is no feedback on brake, just general slowing down appears to cause this very light vibration. I tried hard braking and no vibration or from 70 to 30 braking and all is normal no typical rotor warp and steering wheel feedback. this issue occurs mostly when slowing down even if brakes not involved.


i used to drive first gen tacoma and do remember the vibrations but this is definitely not same so really not sure how to even explain to techs, i am heading out to dealer in a week to see what they say.

 

Weird. If it happens without using brakes it's hardly an issue that could be brake related. Could be wheel(s) out of balance. Could be drive line. Could be slowing down makes you feel bumps in the road more.

Let us know what the dealer finds.

 

seems to be steering so far that feeds most back, probably body too but that would require a passenger to feel, will be driving with dealer later on this week to test out see what they say.

 

Warped rotors or out of round drums would not only vibrate low speeds. In fact, it would be more evident braking at higher speeds.

 

He's feeling vibration when not braking.

 

Yes I realize that. I saw people suggesting brakes. It's not brakes, I have the same issue going on. It is a driveline related issue.

 

Well aren't you lucky.

 

I'd say not generally.

 

I've always thought it was driveline angles, but it was never really bad enough for me to do something about. I bet a well place GoPro could ID the source, provided it's not something internal.

When coasting in neutral the rear diff and drive shaft will be spinning. When coming to a stop in D or N you still will have the rumble strip sensation. Since the deceleration of the driveline is common in these two scenarios, the angles at which it is all connected is a good place to start to look for cause. Seems pretty intuitive to me.

 

New 2017 Tacoma AC 3.5 4x4. Notices this washboard immediately braking from 45. My 2013 had same issue with the 4 speed primarily when cold. This truck as just over 1k miles.
I'll need to take it in. Is there anything new on this issue?

 

Nope this is normal apperantly, went to dealer did test drive 2 others and same shiznitz, clearly flaw in design somewhere, mine is at 15k still does it.

 

Not normal. One member had his truck lemon lawed for this

 

grrrr. so dealer lied to me again,


u have link for that one?

 

Not normal. Vibration when pressing the pedal is uneven distribution of material on rotors or tires are out of balance and when you bring the down to a certain speed it all gets in "sync."

Take to dealer. Tell them it's not normal.

Oh if you've lifted it or done any work expect to be told to get the fuck out.

 

so mine is not like break vibration more of like when i decelerate and start slowing down around 25-20 miles get vibration nothing huge but enouhg that if u pay attention vibrates, showed it to dealer said its normal on offroad, and test drove 2 other ones they did same.... so now that i am about to install stage 3 icon's i bet they will not ever replicated issue LOL.

 

Could be a drive shaft out of round or a bad carrier bearing. A lift will probably make it worse.

I don't know why you'd install shocks to try and resolve vibration when breaking.

 

I am installing new suspension for offroading that i bought this truck for and overlanding, wonder if i should hold of on the install and spend another 2-3 month fighting with dealer about the issues.