Kia Sportage Troubleshooting:  Squeaky Brakes

 

Your Kia Sportage‘s braking system is designed to handle thousands of miles of braking with no intervention from you.  When its brakes begin to squeak, they are telling you that they need some attention. The most typical cause of squeaky brakes are the brake pads themselves, but there are other issues that can cause the noise as well.  The good news is that brake pads are cheap.  We’ll cover the most common reasons that a brake system would squeak directly below.

Brake Squeak Kia Sportage

 

How Your Sportage’s Brake System Works

At the most basic level, the brake system works by using the force that you apply to the brake pedal and converting it to hydraulic pressure (magnified by the engines vacuum at the master cylinder).  This pressure is applied to the brake pads (or shoes if it’s drum brakes) and your Sportage slows down.  This pressure cause a lot of heat and the parts eventually wear down.

 

Kia Sportage Squeaky Brakes:  Causes

Below you will find the most common causes of squeaky brakes in general.  

Kia Sportage Squeaky Brakes
A Good Brake Pad

1:  Brake Pads Have Worn Down

The most common cause of squeaky brakes is going to be worn out brake pads.

Disk brakes are found at the front of all modern vehicles, including your Sportage.    Depending on what year your Sportage is, and what options it was equipped with, it may or may not have drum brakes in the rear.

With brake pads, they are equipped with something called a squealer. The squealer is a piece of metal that begins touching the caliper when the brakes are worn to a level that they should be replaced.  At this level, the vehicle is still safe to drive, but the brake pads should be replaced as soon as possible.  If they are not replaced, the brake pads will eventually wear down and you’ll get a metal on metal situation.  At this point, it will no longer be a squeak that you’ll hear.  Instead, it’ll be a horrible grinding sound.

Shoes are what applies pressure to the drum brakes to get them to slow down the vehicle.  With drums, once all of the metal on the shoe is worn off it’ll begin to make a metallic or grinding sound.  Bad shoes are tougher to detect before they are worn all of the way down.  

 

2:  Anti Rattle Clip

Typical Anti-Rattle Clip
Typical Anti-Rattle Clip

Most modern vehicles have anti-rattle clips.  These clips keep the brake pads from bouncing around between the caliper and the rotor when the brakes are not being pressed.  If they are damaged or installed improperly, it can cause the brakes to squeal. 

If the anti rattle clips are entirely missing, you’ll typically hear a “thunk” noise as they rattle around there.  Eventually the brakes will start to squeal without them as they glaze and wear unevenly.  There’s more on glazing below.  These clips are important.  If you have reason to believe that they are damaged or missing, you should replace them.

3:  Glazing

Kia Sportage Brake Squeal Diagnosis
This brake pad is glazed and not worn unevenly

Glazing is a condition that happens when the brake pads, shoes, rotors, or drums get too hot for too long.  Glazing hardens the contact surface of your pads, and diminishes their overall braking performance.  Squeaking brakes are just a side effect of this condition.  If you Kia Sportage has glazed brake pads, they need to be replaced.

Watch Brakes Get Hot: YouTube

 

4:  Pad Insulation

There is supposed to be a small backing shim that goes between the brake pad and the caliper.  This can become lost or damaged as time goes by.  Most vehicles have this.  If there is a problem with the shims or pad insulation, it’ll usually occur right after a brake job.

 

5:  Rotors

When the brake rotors get an uneven surface, glazing, or are worn too far down they’ll cause a squeaking sound.  Your mechanic can “turn” them, which cuts a new even surface back on to them.  Otherwise, if they are worn too far, you’ll need to install new ones.

 

Conclusion:  Kia Sportage Brake Squeak Diagnosis

It can be tough to nail down the exact reason why brakes squeak.  The most important safety feature on your Sportage is its ability to stop.  Don’t ignore the squeak, and good luck diagnosing it.  If there is anything that you would like to add, please feel free to leave a comment below.

1 thought on “Kia Sportage Troubleshooting:  Squeaky Brakes”

  1. I purchased my sportage brand new, and I the squeaky noise started since day one. The first time I bought it back to the dealership, they said they grinded the rotors cause they were a little rusty from being sitting long time. The second time, they said they changed the front rotors, and the third time they just checked did not make any repairs, now they’re implying that the noise is normal and is due to moisture. According to your report, seems like the rotors are warped.

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