I have noticed random brake squealing on my '10 Maxima SV. It doesn't happen every time, and when it does happen, it happens when I am decelerated at 25mph to 20mph. The squealing stops once I am around 15mph to 5mph.

Also, the squealing doesn't happen at higher speeds (e.g. decelerating at 55mph).

• At last check about a month ago, I still had quite a bit of brake pad life, so I don't believe the pads need replacing.
• From the Driver's Seat, I can't tell which brake this noise is coming from.
• Since the squeal is at a very particular speed, is this a brake caliper issue?
• Is this something that is an easy fix (e.g. lubrication)?

Any help or advice you can provide is most appreciated!

 

Does anyone have any ideas?

 

I wish I knew what this problem is too... mine squeals around 15mph. Coming from the driver front and rear.

 

Is there any kind of rust build up on the rotors? Here in the north east that problem is abundant. Rust builds a lip on the rotor and typically hear squeal at low speeds. It could be a brake pad hardware issue as well, lack of lubrication? You need to really check over the brakes.

 

What would I be looking for when I check the brakes? this sound makes me not wanna drive my car....EVER!

 

1. Pull off a wheel
2. Remove the lower caliper retainer bolt and swing up the caliper
3. Remove the brake pad and see if there are any cracks? any chipped off pieces, any uneven wear?
4. Check both inner and outside of the rotor for rust build up on the edges and around the hat(center section of the rotor).
5. Check to see if the brake pad hardware in the caliper bracket have any lubrication on them.
6. Check to see if the hardware itself is rusty or bent or dinged up.

All of those things can and will cause noise. Very thorough check while only removing one bolt.

Good luck!

 

Thank you. Ill do this weekend. Also I've never understood when your brakes "shake" It's time for new brakes. How do they shake? Is it the same feeling like having unbalanced wheels?

 

Brake pulsation is caused by warped rotors. this commonly happens from overheated rotors. Worn or Chinese rotors are most common to have this occur. This is why most shops don't encourage machining rotors. The reasoning behind that is the rotors are now thinner and therefore more susceptible to heat and warpage . it does feel like out of balance wheels except it only occurs when you depress the pedal.

 

So when this occurs its the rotors? I have a 2012 with 27k. The rotors look fine I think so I assume I need new pads huh? Any recommendations other then OEM?

 

Are my rotors suppose to look like that at 27k miles


Or brakes? I think they look okay?

 

You cannot look at a rotor and say it looks fine. A Micrometer tells you its fine. you need to take measurements from at least 3-5 locations and depths on the rotor. Visual appearance is no indicator.

 

It is hard to tell from pics. If I am correct and your symptoms are noise. I would get a sheet of sand paper and scuff up the surface of the pad. Place the paper on a table or workbench and scrub the pad back and forth on it. Try to do it in 2 directions to make a cross hatch. I would buy a can of brake kleen and spray down the rotor and the caliper hardware. Be sure to lubricate the ends of the brake pad with a good brake grease. DO Not use regular axle grease! It will stink and burn away quickly. Then reassemble. Make sure everything is in its place and that all fasteners are tight. Good luck. If that doesn't clear up your noise next cheap option is to lightly cut rotor and repeat the process I told you. Other wise its off to the parts store

 

Thanks for the feedback. Does it matter what kind of sand paper? 3000 grit?

 

go aggressive. Id use like a 400 or 600 grit. You want to hold the backing plate of the brake pad and do roughly 10-15 strokes left and right and the same up and down. Thatll give it a good uniform finish. make sure to knock down any rusty edges on the rotor. Good luck, let me know how you make out.

 

What were your results?

 

Haven't gotten to it yet too scared im gonna mess it up