Hello. I hear a very loud thumping noise from the back of my 2014 Toyota Corolla as I slow down. I have taken it twice to the service station at the dealer and they hear the noise but cannot identify where the noise comes from, and that everything seems to be fine with the car. What could it be? Not knowing where the sound comes from is driving me crazy!

SOURCE: Thumping noise when braking - 2001 Sienna

Could be a number of things that you cannot "see".

First, make sure the tire pressures are within the van manufacturers specifications. The tire pressure label will be on the driver side door pillar on a little sticker. Also confirm that the tires haven't been replace with an overly greater / lesser size.

Broken radial belts inside the tires are another cause - and is also dangerous if the tire heats up enough - it's a blowout waiting to happen.

Check for ANY unusual "ripples" on the inner and outer sides of the tires, and for any unusual wear patterns.

Putting the tires on a balancer will NOT show these tire problems.

You could try narrowing the problem down to a particular tire, and putting the spare on and see if the problem goes away.

Also, I have seen "off brand" or "blem" tires do this a lot.

SOURCE: Rear thumping noise

shock mount on the rear....... torn rubber on the mount

SOURCE: Brakes are making loud grinding noise when slowing down to stop or on an incline

Ok, it could be a few things, 1. bad break caliper. 2. if you have ceramic breaks, it could be a cracked brake pad, and if they are not ceramic they can still be cracked. 3. if you drive a lot then it could be that you need new breaks again.. 4. also have your back breaks checked along with the front ones..

SOURCE: noise from rear of car only while driving, can not

Cheap and easy fix, just replace the rubber bushings under the back where the sway bar is held to the chassis. The rubber gets worn and hard and allows the bar to rattle when going over bumps.

SOURCE: My car keeps making a thumping noise on the passenger side everytime i drive down the road

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