SLOWING DOWN THE BRAKE PEDAL GETS HARD WHEN I ...

2002 Chevrolet Silverado

Tiny

Anonymous

January, 16, 2013 AT 3:17 PM

Slowing down the brake pedal gets hard when I push on it And won't stop then it gets normal and stops real fast.

FOUND 918 RELATED QUESTIONS

Excessive Brake Pedal Travel

25 ANSWERS
3 IMAGES

Brake Pedal Sinking

11 ANSWERS
3 IMAGES

1 Answer

Tiny

caradiodoc

January, 16, 2013 AT 7:42 PM

First suspect is a collapsing vacuum hose to the power booster. Next would be the check valve. If the power assist comes back when the transmission downshifts, that's because engine speed and vacuum picked up. That points to the check valve. It is supposed to let the booster store enough vacuum for two power-assisted stops if the engine stalls. That vacuum goes away when the check valve is leaking and engine vacuum is low.

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Brake Pad and Rotor Replacement - Front
Brake Pad/rotor Replacement - Front
Brake Pad/Rotor Replacement - Rear