Humming noise on my SIenna

brakes
noises

#1

Hi. I have a 2009 Toyota Sienna with approx. 130k miles. Recently I am noticing when driving on the highway that I get a humming/ringing sounds. It gets louder and softer as I drive. It is not always there but when it does make that sound, it is when I am over 65 mph. If I tap the brake it immediately stops but then if I hit the gas it starts again. Also sometimes when I tap the brakes (not on the highway) I do get a screeching sound. I’ve taken it to the mechanic and he checked my brakes and says they are fine. I just got two front tires thinking it was that but it is still there. Is there anything else that I should consider? Should I go get a second opinion on the brakes since the sound stops as soon as I tap the breaks? Thanks!


#2

BRAKES not breaks


#3

I would suggest having a different mechanic check your brakes, as well as the wheel bearings.


#4

The screech may be the from the accessory belts (A/C, Alternator, and PS). If they are the original belts it wouldn’t hurt to replace them after 6 years.

Ed B.


#5

Brake grease could be added to the back of the pads to reduce the brake sqeal. Are the pads oem?


#6

Try swapping the front and rear tires, see if the noise switches places too. First place to start on this kind of problem is usually the tires. Not b/c it is always the tires, but the tires are the easiest to eliminate.