Skip the auto shop - Our mechanics make house calls

Q: Uneven brake rotor wear

asked by on

I have a problem with my Hyundai Tucson 2007, the rear LEFT brake rotor (almost brand new, with a few hundred miles/km, not machined) is wearing only half an inch from its center (inside and outside face). The brake pads were replaced at the same time as the rotor. I have checked the left rear brake pads (in and out), I cleaned the caliper and the caliper mounting bracket, the pad retainers and the brake pads still rub only on the inner brake rotor. The brake rotor is rusted 1 inch from the outer edge on the inside and the outside. i noticed some more problems, maybe the cause: 1. the caliper body moves, almost 0,03 inches / 1 millimeter, along the arrow depicted in the first picture. https://postimg.org/image/tba5aa1j1/ 2. also the guide rod bolt circled in the second picture also moves with the caliper body. https://postimg.org/image/3ydhvljhl/ 3. the distance between caliper bracket frame and the brake rotor hub is less on the left side of the car ,than on the right side.

My car has 60000 miles.
My car has a manual transmission.

A: Hello. I tried to view the pictures but the...

Hello. I tried to view the pictures but the link seems to be broken. It sounds like you have two different problems reading the description of the problem. The first is the brake pads being too tight and binding in the caliper bracket. This is most likely caused from the pad ends are not machined smooth and do not slide into the caliper bracket smooth. This will cause them to bind and cause low brake application or will keep the brakes partly applied wearing them down quickly. The other possible problem is the caliper may be binding on the slides or the piston is binding. If you would like precise advise on exactly what needs repair, have a certified professional diagnose the brake system in person and follow through with correct repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Problem with acceleration

Hi. There are dozens of potential causes for your problem. It could be anything from a worn fuel pump to a clogged air filter. If the Check Engine Light is on, the first step is to retrieve the diagnostic trouble...

Q: ABS light and brake lights are on all the time

This indicates there is a problem in the Anti-Lock Braking System (ABS). In this system, the VSA modulator control unit monitors wheel speed via sensors. If from the sensor signals the module determines wheel lockup is about to take place,...

Q: Throttle delayed at high rpms

I'm curious if your Check Engine Light on. It sounds like there may be an issue with either the throttle position sensor offering false readings to the computer or there's an issue with the reaction of the throttle plate. There...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.