Brake pedal goes to floor

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Ck for a rusty line that's leaking I also want to know if the backing plates are wet if they are find the@ leak caliper or wheel cylinder
Please reply thank you

Low brake pedal almost always indicates a compromised hydraulic system. Check you brake fluid level. If it is ok and you haven't had anything replaced in the brake hydraulics system lately, such as a wheel cylinder or brake caliper, then the primary suspect is the master cylinder.

try changing the brake switch in the floor behind brake pedal.... pedal activates in when used, sending power to brake lights

Hey Stan the man,need your vehicles info.,year,make,model and engine size and Tommy on the spot here will send you a picture diagram of your rear brake assembly.There's a special spring tool you can get at auto parts store to remove and install springs,me got one.

You undoubtedly still have air in the system, bleed the brakes again, if the result is the same have a shop pressure bleed the system for you.

if something goes wrong with abs the brake system it reverts back to standard system!! If you can pump brake pedal up and hold it and start engine and it drops thats normal.You say low pedal if you go 15mph on road and check where pedal is when brakes apply.Power brakes will push aLMost to floor while stopped but while moveing you`ll almost go to slide or will go into slide if pedal is pushed to floor.Get on some gravel at 10 mph and hit brakes to a complete stop get out and check to see if all 4 tires slid or 2 front or only 2 rear. this will get you closer to problem good luck.

Somehow air isstill getting into your brake lines, please put more fluid into brake resiviour and have another person check the lines while you are pumping the brake pedal, This should really help

Change the brake caliper. This should do it.

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are your rear drums set up? why did you bleed the brakes. when only when you installed new pads?