Brakes keep smoking and locking up

Tiny
JODI2
  • MEMBER
  • 2007 FORD EXPEDITION
  • 5.4L
  • 4 CYL
  • 4WD
  • 151,000 MILES
My brakes keep locking up on me and they start to smoke and I do not know what else to do. I have had new brakes and pads put on, caliper and a master cylinder. I need help please.
Tuesday, July 17th, 2018 AT 7:16 AM

10 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi and thanks for using 2CarPros. Com.

First, is this problem related to all four wheels? Also, if you safely lift the vehicle, do the wheels turn easily? If you apply the brakes and release them can you turn the wheels?

There are a few things that can cause this problem. However, it usually is not all of them at the same time, so please let me know. Also, have all brake calipers been replaced? If not, has new brake hardware, including the caliper slides, been replaced? Have any of the rubber brake hoses been replaced?

I will watch for your reply.

Joe
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Tuesday, July 17th, 2018 AT 8:40 PM
Tiny
JEFF STEINDORF
  • MEMBER
  • 5 POSTS
Hello Joe, my friend is having a similar issue on a 2008 Expedition. Right front caliper seems to be locking without the brakes applied. Just replaced front rotors and pads and right front caliper. The issue is still occurring with the right front locking up. Any suggestions?
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Monday, April 22nd, 2019 AT 5:20 PM
Tiny
JEFF STEINDORF
  • MEMBER
  • 5 POSTS
154,000 miles on the vehicle
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Monday, April 22nd, 2019 AT 5:22 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Welcome back:

Most likely it is the rubber brake hose that runs to the caliper. Over time, the break down internally. Forcing fluid through is achieved, but when you release the brake pedal, there isn't enough pressure to return the fluid and the brake sticks.

Here is a simple way to test it. Safely lift and remove the wheel. Apply the brakes so the rotor will not turn and release the brake. When released, can you turn the rotor indicating the brake has released? If not do this.

Apply the brake again and try to turn the rotor. If you can't turn it, open the bleeder on the brake caliper which in turn will release the pressure on the brake pads. If you can then turn the rotor, replace that rubber brake hose.

Remember, if the caliper is sticking, the brake will get hotter than it should. Then, fluid begins to expand and forces the brake to lock.

Let me know what you find or if you have questions.

Take care,
Joe
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+1
Monday, April 22nd, 2019 AT 6:39 PM
Tiny
JEFF STEINDORF
  • MEMBER
  • 5 POSTS
Thanks Joe. Will take a look and let you know what we find.
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Tuesday, April 23rd, 2019 AT 1:49 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Welcome back:

You are welcome. I will watch for your reply.

Take care,
Joe
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Tuesday, April 23rd, 2019 AT 7:23 PM
Tiny
JEFF STEINDORF
  • MEMBER
  • 5 POSTS
Hi Joe,
We did your test and after pressing the brake pedal and releasing, the rotor was hard to turn. Opening up the bleeder enabled the rotor to turn again. So we followed your direction and replaced the hose. The hose, (Dorman), same length and appeared to fit but the original retaining clip at the top of the hose didn't fit the new hose to lock it in. The new hose had a larger diameter than the OE hose below the hex lock nuts. There is no rubbing of hose to metal but it not as secure as the original hose. Should we contact Dorman for a retaining clip or just leave it alone? The brakes so far are functioning well with no lock up. We test drove it about thirty miles today.

Thanks,
-Jeff
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Wednesday, April 24th, 2019 AT 6:00 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Welcome back:

Jeff, It should be okay, but honestly, I would want it secured. Some people say I worry too much, but I like things to be put back the way the manufacturer designed it. Recontact the parts store and see if they have another one on stock that has the retainer. I would think they would give it to you. If not, Dorman is an excellent company. I use a lot of their parts and feel they would help you.

Regardless, I'm glad that took care of it for you. Let me know what they tell you and if you get the part you need. It's funny, any time I do brake work, everything has to be clean, corrosion free, I file the slides to ensure there are no burs or uneven spots, and lube everything. One of the techs saw me doing it today and said I was nuts. I guess the bottom line is this. I never had a brake job come back. LOL Others have. There are certain components I will not let go without being 100% sure everything is right (at least to the best of my ability). Brakes are number one in that category.

Please feel free to let me know if you have additional questions or need help. Also, let me know if you get what you need.

Take care of yourself.

Joe
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Wednesday, April 24th, 2019 AT 7:02 PM
Tiny
JEFF STEINDORF
  • MEMBER
  • 5 POSTS
Hi Joe,

My friend was able to get to the parts store today. They sold him a bag of four retainer clips for $4.00. We'll put it on tomorrow. So far no other issues. You sound like the kind of Tech that pays attention to the details. I like that. I try and do the same as a weekend warrior.

I'll give you an update in a couple of weeks. I figure we will give it some time before we finally declare success. Thanks so much for your help!

-Jeff
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Friday, April 26th, 2019 AT 11:38 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
You're welcome, Jeff. Honestly, many years ago I had a great teacher. He insisted that the vehicles will always work the best the way engineers designed them to be. He was like that. In his mind, everything had to be perfect. LOL In a way, I think it rubbed off on me. I absolutely hate doing sloppy work. He used to say, "make it look like someone lives here" when we did things. Everything had to be clean, neat, and properly put back. Actually, I'm glad he was like that.

I will watch for your reply. Take care and enjoy the weekend.

Joe
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Friday, April 26th, 2019 AT 7:14 PM

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