Brakes grinding noise

Tiny
KRUPER101
  • MEMBER
  • 2017 RAM 1500
  • 5.7L
  • V8
  • AUTOMATIC
  • 89,000 MILES
So, I replaced both front brake pads and rotors on my truck (myself). Still getting a bad grinding noise. I double checked my work when I was finishing them up. But I had to use a different style caliper bolt not caliper bracket bolt because one snapped that is the only thing I can think of that could cause it. The grinding happens even when I'm not touching the brakes. Need some help please it's killing me not driving this beauty!
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Friday, October 8th, 2021 AT 9:35 AM

11 Replies

Tiny
SQM
  • EXPERT
Hello,

Just to clarify, did you have this noise before replacing the pads?
Also, the bolt that you replaced was it one of the slide bolts or just the smaller standard bolt?

If you had this grinding issue before, it is likely that the caliper is sticking. If the caliper does not release all the way the pads will be in contact with the rotors, and you will hear the grinding noise.
This can be due to a faulty caliper piston or a restrictive brake hose to the caliper.

Let me know what you are experiencing.
Thank you.

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd
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Friday, October 8th, 2021 AT 10:46 AM
Tiny
KRUPER101
  • MEMBER
Could you tell me how I would check for a faulty caliper piston, or the brake hose? It was just the standard bolt that held the whole caliper in place, and it did start grinding before I changed the brake pads and rotors.
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Friday, October 8th, 2021 AT 11:21 AM
Tiny
SQM
  • EXPERT
So, it did the grinding before, as you were just driving down the road?

Usually, they brakes will overheat when the caliper sticks, as the friction of the pads across the rotors creates good amount of heat.
So really you will have to look for excess heat and noise to figure out if the caliper is sticking. In most scenarios the reason for the caliper to stick is a bad hose. Keep in mind if the caliper(s) have been overheating for an extended period of time, the heat will damage the internals and the caliper will need to be replaced.
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Friday, October 8th, 2021 AT 11:42 AM
Tiny
KRUPER101
  • MEMBER
Yeah, I was about ten minutes from my house, and it started grinding and every time. I thought I had it correct and test it still the same thing.
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Friday, October 8th, 2021 AT 12:20 PM
Tiny
KRUPER101
  • MEMBER
So, my piston on my passenger side the metal ring part is damaged a chunk is missing from that metal ring. Would that be what's causing it to grind? I know from putting my calipers back on that the sliding pins aren't seized up.
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Friday, October 8th, 2021 AT 12:23 PM
Tiny
SQM
  • EXPERT
That could be it. Can you upload a picture?
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Friday, October 8th, 2021 AT 12:26 PM
Tiny
KRUPER101
  • MEMBER
So obviously this isn't mine, but the white shape is where the piston ring is damaged at the top of that ring its missing metal right there.
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Friday, October 8th, 2021 AT 12:49 PM
Tiny
KRUPER101
  • MEMBER
I didn't even think to get a picture of it when I had the tire off if you need a real picture of it, I can do that as well I just put the tires back on and everything incase I had to drive it.
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Friday, October 8th, 2021 AT 12:59 PM
Tiny
SQM
  • EXPERT
Unless the seals around the piston is broken/damaged, having a chunk broken on the face of the piston may not cause the grinding noise as you drive without any brake being pressed.
Did the seal look to be damages around the piston?
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Friday, October 8th, 2021 AT 1:09 PM
Tiny
KRUPER101
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No, it wasn't at all that was the only thing I noticed.
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Friday, October 8th, 2021 AT 1:16 PM
Tiny
SQM
  • EXPERT
When the brake hose collapses in the inside it can become harder to bleed, when comparing to the other side.
This might be too basic, but make sure that the anti-rattle clips are secured for the pads.
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Saturday, October 9th, 2021 AT 2:13 PM

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