Hot brake Issues?

2008 HONDA CIVIC
280,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
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TC93
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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?
Sep 28, 2024 at 11:20 AM
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STRAILER
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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.
Sep 28, 2024 at 12:16 PM
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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.
Sep 29, 2024 at 10:33 AM
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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.
Sep 29, 2024 at 10:35 AM
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STRAILER
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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?
Sep 30, 2024 at 9:37 AM
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TC93
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No, and I've replaced the passenger side a while back.
Oct 2, 2024 at 10:55 PM
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TC93
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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.
Oct 2, 2024 at 10:57 PM
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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.
Oct 2, 2024 at 11:00 PM
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STRAILER
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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.
Oct 3, 2024 at 9:55 AM
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TC93
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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.
Oct 3, 2024 at 10:47 AM
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TC93
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It's as if all the heat from under the hood is dissipating out the lug nuts.
Oct 3, 2024 at 12:35 PM
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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?
Oct 4, 2024 at 11:08 AM
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TC93
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I'm in a 2008 Honda Civic.
Oct 4, 2024 at 11:27 AM