Hot brake Issues?

Tiny
TC93
  • MEMBER
  • 2008 HONDA CIVIC
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 280,000 MILES
My front lug nuts are too hot to touch. So, I changed everything. I changed both front calipers with new bracket Brake pads on both sides and both rubber hoses on the calipers and still getting hot to touch. What should be my next step?
Saturday, September 28th, 2024 AT 11:20 AM

12 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,321 POSTS
So, the brakes get hot because they are not being released fully. This is typically because the brake master cylinder is not returning to its neutral position, or the brake booster is not returning. I would raise the car in the front after driving the car and see if the front wheels rotate freely, if not loosen the master cylinder mounting nuts 3 turns to see if the system releases. If so, chances are the brake master cylinder is bad. Here is a guide, video and instructions in the images below so you can fix the problem:

https://www.2carpros.com/articles/a-comprehensive-guide-to-fixing-automotive-brakes-locking-up

and

https://www.2carpros.com/articles/how-to-replace-a-brake-master-cylinder

and this video can show you how to bleed the master before installation, do not install the master without bleeding it first so you don't pump air into the system.

https://youtu.be/WDxvEQrMkBg?si=Ka5_4yU0KOeSUUH7

Check out the images (below). Please let us know what happens.
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Saturday, September 28th, 2024 AT 12:16 PM
Tiny
TC93
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So, I drove down the road and came back and the lugs were still pretty hot not as bad but still hot and it's raining. So, I jacked one side up to spin the wheel it spins but I don't know if it's the drag from the CV shafts as in how much it should actually spin free. So I opened the bleeder valve closed it, and it spins the same.
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Sunday, September 29th, 2024 AT 10:33 AM
Tiny
TC93
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I didn't have a long enough extension to back the bolts off the master cylinder is why I just opened the bleeder valve.
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Sunday, September 29th, 2024 AT 10:35 AM
Tiny
KEN L
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If they spin, then the brakes are not sticking on. It could be the bearing hub that is getting hot, how does it sound when you drive it, can you hear a humming noise?
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Monday, September 30th, 2024 AT 9:37 AM
Tiny
TC93
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No, and I've replaced the passenger side a while back.
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Wednesday, October 2nd, 2024 AT 10:55 PM
Tiny
TC93
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  • 9 POSTS
The shop I took it to told me to change the master cylinder so I just ordered that if this doesn't fix it idk what will unless it's like the ABS system or something.
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Wednesday, October 2nd, 2024 AT 10:57 PM
Tiny
TC93
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All I know is there is way too much heat coming of my lug nuts and in turn heating all the new parts I've put on it.
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Wednesday, October 2nd, 2024 AT 11:00 PM
Tiny
KEN L
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Are the lugs nuts hot on both side? Also, you can confirm that when you raise the truck up both wheel spin freely correct? If so the brake are not sticking on.
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Thursday, October 3rd, 2024 AT 9:55 AM
Tiny
TC93
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  • 9 POSTS
Yep, both sides get too hot to touch and both wheels spin as in there not stuck how freely idk with the CV shafts spinning as well but they spin as in the wheels not stuck.
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Thursday, October 3rd, 2024 AT 10:47 AM
Tiny
TC93
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It's as if all the heat from under the hood is dissipating out the lug nuts.
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Thursday, October 3rd, 2024 AT 12:35 PM
Tiny
KEN L
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If the brakes are not sticking then it only leaves the bearing hubs. If you take the truck for a drive and don't use the brake much does the lugs still get hot?
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Friday, October 4th, 2024 AT 11:08 AM
Tiny
TC93
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I'm in a 2008 Honda Civic.
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Friday, October 4th, 2024 AT 11:27 AM

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