Brakes get stuck

[Daniel Rivera]

Hi,

just recently bought a 2004 Yukon SLT, replaced rear rotors, calipers and brake pads as soon as I got it. Brake lines seem fine.

When I step on the brakes hard they get stuck to the floor and lock up my wheels, they will only release themselves when the car comes to a complete stop. I am thinking maybe faulty abs module?

also the dashboard instrument cluster is stuck in language selection setting.

Any ideas on this. I am new to the forum and tried to use the search option without much luck.

thanks!

 

[wjburken]

Hi,

just recently bought a 2004 Yukon SLT, replaced rear rotors, calipers and brake pads as soon as I got it. Brake lines seem fine.

When I step on the brakes hard they get stuck to the floor and lock up my wheels, they will only release themselves when the car comes to a complete stop. I am thinking maybe faulty abs module?

also the dashboard instrument cluster is stuck in language selection setting.

Any ideas on this. I am new to the forum and tried to use the search option without much luck.

thanks!

Welcome to the forum from Iowa!

A lot of helpful folks here. Unfortunately, I don’t have much experience with the brakes on your vintage vehicle, but there are a lot of folks here who do.

 

[Scottydoggs]

is it both back wheels or just one?

 

[Daniel Rivera]

is it both back wheels or just one?

I feel like it’s all 4 wheels, it gets stuck all the way down like if I were forcefully pressing it down.

 

[Scottydoggs]

I feel like it’s all 4 wheels, it gets stuck all the way down like if I were forcefully pressing it down.

was it doing this before the brake job?

 

[Daniel Rivera]

was it doing this before the brake job?

I don’t know.

I can drive it regularly and the brakes are just fine. This happens only when aggressively braking. I did not try that before the brake job, just saw some corrosion on the rotors and calipers and decided to change them.

After the pedal gets stuck and the car comes to a complete stop they release themselves and then work just fine....until you slam them again.

I live in Michigan and the temp here has been less than zero, that should not matter but just thought I should mention it.

 

[Mechanic421]

I don’t know.

I can drive it regularly and the brakes are just fine. This happens only when aggressively braking. I did not try that before the brake job, just saw some corrosion on the rotors and calipers and decided to change them.

After the pedal gets stuck and the car comes to a complete stop they release themselves and then work just fine....until you slam them again.

I live in Michigan and the temp here has been less than zero, that should not matter but just thought I should mention it.

So my truck did the same thing,I replaced the master cylinder and has not done it sense.

 

[afpj]

Also, "carefully" check your flex brake hoses at the 4 corners, and the center one on the rear depending on setup. I seem to recall something similar happening to another member and turned out the flexible hoses were very worn, breaking down, not holding pressure very well. Just because they look sort of okay on the outside does not mean they don't have cracks and a pseudoaneurism type process happening on the inside. Remember your rig is 16 years old and probably over 100,000 mi so rubber breaks down.

 

[Doubeleive]

I would suspect the master cylinder, there is really no other way for the pedal to "get stuck" the brakes do not apply vacuum to the lines and suck the pedal in, pressure goes the opposite direction

 

[Mechanic421]

My truck is hydroboost. By the way.