braking issue

[Buckeye2014CCHC]

I have a 2014 High Country with over 100k miles on it. Sometimes when I fully apply the brake the truck will keep moving. It only happens occasionally while in reverse or going forward at low speeds (parking or stop & go traffic) Has anyone else experienced this issue?

[diyer2]

Master cylinder, brake booster?

[15_silverado]

Does the brake pedal go all the way down to the floor?

If so, most likely booster or master cylinder.

 

 

Or

 

Does the brake pedal feel very hard to push; like you don't have power brakes?

If so, most likely vacuum pump.

[Buckeye2014CCHC]

The pedal kind of feels like when the anti lock brakes are being applied. Hasn't happend in a while, but I'm afraid when it does happen again I'm going to hit something.

[15_silverado]

The pedal kind of feels like when the anti lock brakes are being applied. Hasn't happend in a while, but I'm afraid when it does happen again I'm going to hit something.

So then, when this happens is the brake pedal hard and pulsating, do you feel or hear a vibration in the pedal. Are there any lights on the dash/ abs light?

 

If so, could be an abs wheel sensor needs replaced.

[Buckeye2014CCHC]

No, nothing. No lights, no pulsating. Pedal just feels weird. No slowing down either, but it's at very low speeds when this happens.