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It is like the brakes are still sticking

Tiny
HAMMY863
  • MEMBER
  • 2008 GMC SIERRA
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 230 MILES
It is like the brakes are still sticking. Once I tap the brakes it will release and I can drive again it doesn't in forward and reverse. What else is there to do? I have changed master cylinder brake boost sensor and calipers.
Sunday, April 25th, 2021 AT 12:02 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Just want to confirm what the issue is. When you step on the brakes they lock up and do not release but you are able to step on the pedal and they release?

Just want to confirm how they are released and you can drive again.

Based on what you have done, I suspect this is a rubber brake line that is the issue. When they swell they actually hold the fluid in the caliper and it remains applied.

So let's start with lifting the vehicle and stepping on the brakes or get them to lock up and then release them and see which specific wheels are remaining locked.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

I doubt it is all of them but it is good to know which ones are. Let's start with this and go from there. Thanks
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Monday, April 26th, 2021 AT 6:55 PM

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