jmzb1002

new akebono pads all around, new front centric rotors. when braking at 40 to 60 mph, the steering wheel still shakes, shutters, pulsates, wiggles, the same amount as before the new pads and rotors. It is still the slight vibration, nothing crazy, ive experienced worse, but im not satisfied with the new rotors and brakes. i have changed rotors and pads on my vehicles, going back to G1, G2 Legend Coupes for the past 20yrs, and i have always dealt with and fixed the slight vibration in the steering wheel, due to warped rotors, with every Acura ive owned. This is the first time I have done this on my 07 RL. Just curious if anyone else experienced this. I'm thinking bad calipers? or worn out axles? keeping old rotors on the rear would not make the steering wheel shake when braking from highway speeds. Any input would be appreciated, thanks in advance!

DanL07RL

-Warped- Brake Disc and Other Myths

jmzb1002

Thanks, I like that write up, very detailed.

I did perform several brake sets from about 60mph, never to a complete stop. But now I just read on tirerack website for akebono pads, no heavy braking for 400 to 500 miles. I may have not bedded or "introduced" the rotor and pad correctly?

oo7spy

I would check your steering components and axles.

thoiboi

My guess is the bedding procedure not being done properly

lausy

What about checking balance of the tires?
I have read about seating new pads, but always tried to follow what our owners' manual says about being gentle for the first 100 miles. I recently changed my pads and front rotors with same setup and 500 miles later, everything is cool!

jmzb1002

The tires are balanced, just had that done last week. Crazy to think improper bedding on new rotors and pads will get you shudders while braking. Centric says to do several series of hard braking, akebono says avoid hard braking for 400 to 500 miles. Whixh one is it? Even that prescription of avoiding hard braking cannot be guaranteed or absolute, say you have to brake hard to avoid an accident. Now you have bedded improperly? I hope it clears up in a few hundred miles.

csmeance

it could be an out of balance rotor that was put on your car.

DanL07RL

I think the key is to avoid hard braking all the way to a full stop. As the article indicates, doing that creates deposits on the rotor, and so I suspect the Akebono caution relates to that full stop situation. If you didn't bed them properly, you most likely left some material on the rotors even during a moderately strong stop. That can easily occur by simply taking an exit ramp a bit too aggressively.

shahram72

Check the steering end links. If you drove on warped rotors like I did for a while, they might be worn. JAck up the car and grap the wheel and try to move it side to side. There should be no play. I had to replace the end links along with the brakes. Mine stops very smooth now and I had bad shake.

IndyTodd

I had the same problem a couple years ago. Warped rotors. Replacing the rotors eliminated the vibrations, which were especially rough when braking at highway speeds. Now the vibrations are back, although not as bad yet. I assume it is the rotors again. This must be some type of design flaw in my 2006 Acura RL. The tires are fairly new Goodyears.

eg5

iTrader: (4)

Ever thought about rear brakes causing vibration? I have had a few vehicles that warped rear rotors were the culprit. Though, the steering wheel will vibrate I have found the easiest way to determine if the rear rotors are at fault, is checking the side mirrors upon braking.
That's right, out of round rear rotors will generally give an all out front end vibration that seems to center on the side mirrors instead of the steering wheel. A sight vibration or heavy , given these rl's have a tendency of having loose side mirrors.
somthing