Brake pedal sinking

10

Asked by Jan 29, 2016 at 08:26 PM about the 2010 Chevrolet Corvette Z06 3LZ Coupe RWD

Question type: Car Customization

My car have a brake problem sinking to the
floor cause this problem please help me
thanks....

12 Answers

77,975

Sounds like there is a leak in the break system or the master cylinder is gone bad. If you are not loosing any break fluid then probably would be the master cylinder.

1 of 1 people found this helpful.
73,995

Usually when the pedal falls to the floor under steady pressure the master cylinder is leaking internally. Check the fluid level first. If it's ok, the system's not leaking externally. HTH. - Jim

10

I have check the master cylinder not leaking & brake fluid not leaking i havent change my brake fluid almost 3 1/2 years what do u think about the brake gonna be pkease answer my Question thank u...

1 of 1 people found this helpful.
77,975

The master cylinder is by-passing internally. You would need to replace the master cylinder.

1 of 1 people found this helpful.
73,995

Exactly, Rowefast is correct. Your master cylinder is bad. HTH. -Jim

You dont have to have a leak, it could be a seal or "O" ring somewhere in the system & most likely the the master cylinder. Master cylinders are easy to replace, but bleeding the air out you'll need some help pumping & hoolding the peddle down while someone else lets the air bibbles out at the bleed check valves at every wheel. Old drum brakes always went bad from the little wheel cylinders going bad & leaking. And todays disc breke calipers dont do that,

215

do you have a brake booster in the car,that is the usual problem in a c-4 corvette

5

Check the brake pads, extremely excessive wear would allow the pedal to go to the floor.

77,975

Its a 4 wheel disc break, not like having rear drums to keep the shoes adjusted up to have pedal. And yes it would have a break booster, and when they go bad, the break pedal gets extremely hard to push.

1 of 1 people found this helpful.
10

My disc & brake is good only the brake pedal go to the floor im slready bleed the air out of the system why brake pedal still go down to the floor please help me thanks..

73,995

Replace the master cylinder and bleed the entire system. HTH. -Jim

1 of 1 people found this helpful.

Sorry I didn't notice is was a ZO6 Corvette with a power booster.

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