My right rear brake does not release all the way?

PAUL0321

MEMBER
2003 GMC YUKON
V8
4WD
200,000 MILES

My right rear brake does not release all the way. I have changed the pads and the caliper. When I first use the truck in the morning, it's okay until I brake a couple of times. Then it starts to drag, but it doesn't lock up completely. When I get to work, a ten-minute drive on side streets, the right rear wheel is too hot to touch. I think the problem is the ABS control module, but I don't know how to verify it.

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

I don't think it is the ABS controller, I would change out the brake flex hose which can fall apart internally and block the fluid from returning, also check the caliper slides as well.

Here is a guide that can help:

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

Here is how to change out the brake hose. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.

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Monday, October 7th, 2024 AT 9:15 AM

PAUL0321

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3 POSTS

Okay, I'll change that out and let you know what happens. Thanks.

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Monday, October 7th, 2024 AT 8:12 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

You are welcome.

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Tuesday, October 8th, 2024 AT 10:11 AM

PAUL0321

MEMBER
3 POSTS

Hi,
Here's an update on the brake issue: I haven't done anything yet, but the right rear brake has been fine, with no dragging or overheating. The left rear brake seems to be dragging a bit now, and the rim is hot when I get home from work. I'm not sure what to make of this change. Could it be the ABS control module?

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Tuesday, October 8th, 2024 AT 9:22 PM

KEN L