There are many reasons why your car brakes could make grinding noise even when your brake pads are fine. The reason could include anything from a minor issue to a big problem for causing it. And, even though the noise irritates you, it comes off as a warning that something is wrong with your brakes. So, the first thing that's recommended is the inspection of the brakes.
You must not delay the check-up at any cost, as later on, it can become hazardous for the driver. So, repairing becomes essential once the brakes start making the grinding noise.
In this article, we'll share five significant causes of grinding noise. We'll also discuss why new brakes might make noise at low speed.
Five possible causes of grating noise:
Let's see what issues can create a grating noise despite the intact brake pads.
1. Dirt, grime, and rocks being stuck between the rotor and caliper
The dirt, grime, and small rocks can get stuck between the rotor and the caliper. This creates an annoying grinding noise with or without you pushing the brakes. If not taken care of on time, your brakes will fail eventually.
2. Deteriorated rotor discs
The squeaky and shrill noise comes from the rotor discs that reach the stage of deterioration. You'll hear vibrations and grazing sounds from time to time. You'd also feel the noise coming from the brake pedal. So, worn-out rotor discs must be replaced immediately.
3. Driving the car less frequently
When one of the brakes produces a grinding sound, the reason could be that you aren't driving the car too often. Brake pads usually last for 20,000 mileage. So, if you let the car sit in the garage for months, the rusting can drastically shorten the lifespan of your brake pads. Also, the corrosion would get to the rotor discs ruining them along with brake pads.
4. Low-quality brake pads
Installation of low-quality brake pads can make scratching sounds within weeks. All in all, it'll be your disadvantage for investing in something cheap that won't be durable and last long.
5. Carelessness in lubrication
The brakes demand proper lubrication of the backside of the brake pads. You can use the caliper lube to lubricate. Because not paying attention to it will cause the brake pad metal to collide with the caliper piston, creating grating noise. You'd also need to lubricate the caliper slide pins and caliper bolts.
Why do new brakes make grinding noise at low speed?
The only reason why new brake pads or rotors would make noise after installation is because they are made cheaply. You might not feel the noise at a fast speed, but at a low pace, you can hear it a lot.
So, it is not recommended to buy poor-quality machinery for cars. And to avoid the loss of money in covering repair costs, you must invest in a reliable brand.
You must not take the grinding noise lightly and immediately react to figure out the cause. We also suggest you consult a mechanic and take care of the problem on time. If you know any more reasons or tips, let us know in the comments.