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Brake feels like its on

Tiny
MCA28
  • MEMBER
  • 1997 TOYOTA 4RUNNER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 239,548 MILES
I have been experiencing this issue just for a few days now. The truck is on drive and it feels forced to go above thirty mph and the brake feels like its on as it will also make the vehicle be at a total stop without me having my foot on the pedal? As I drive slow it suddenly changes back to normal and it is a smooth drive. I have changed brake pads two months ago as well as brake oil have. Also did balancing of tires as well as alignment. Please help I do not know what it might be and where I have asked they said different things.
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Tuesday, September 19th, 2017 AT 2:16 PM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
This sounds like you have one of two things happening. First is the flex line that is going to your front and rear brake calipers can fall apart inside creating a one way valve that only allows brake fluid to enter and not exit the brake caliper. Look for the wheel or wheels that are hotter than the rest this will be the hose that is bad. double check to make sure you did not twist the brake caliper hose when doing the brakes this will cause it as well.

Here is a video to help you replace the hoses.

https://youtu.be/xMS8Xy4Xz1U

If the hoses are okay the next thing would be the master cylinder push rod is extended too long not allowing the master cylinder to fully release it pressure.

Please let us know what you find.

Cheers, Ken

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Monday, April 12th, 2021 AT 10:06 AM
Tiny
MCA28
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  • 4 POSTS
Hello, thank you and I went ahead and checked those things and they seem fine.
I forgot to mention that when I had the pads replaced I didn't do any resurface or replacement of rotors? Can that be the issue?
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Monday, April 12th, 2021 AT 10:06 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Not really, I would check the caliper slides to make sure they are working, here is a guide so you can see what Im talking about.

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd

When the brakes are locks can you loosen the mounting bolts to the master cylinder to see if they release?

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Monday, April 12th, 2021 AT 10:06 AM
Tiny
MCA28
  • MEMBER
  • 4 POSTS
I looked at the info you sent and my problem is the truck sometimes brakes without me having my foot on it. But on drive? When I accelerate the truck it feels forced? Then it starts going at regular speed after I've been on the road and brakes are back to normal. Maybe that's a better explanation as to my issue. It only happens sometimes not always.
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Monday, April 12th, 2021 AT 10:06 AM
Tiny
KEN L
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Can you take a quick video of the problem and upload it here?
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Monday, April 12th, 2021 AT 10:06 AM
Tiny
MCA28
  • MEMBER
  • 4 POSTS
Could it be that my brakes are overheating and that's what is causing them to freeze up and not let me drive? I wait for a bit so it can cool down and then it drives normal again
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Monday, April 12th, 2021 AT 10:06 AM
Tiny
KEN L
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Heat sound not be a problem. Sure sounds like the master cylinder is not releasing completely. When the brake are locked up can you loosen the 2 master mounting bolts 3 turns to see if the car rolls again?
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Monday, April 12th, 2021 AT 10:06 AM

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