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Normally this is caused by a Master Cylinder that has failed. Replace the Master Cylinder.
Normally this is caused by the loss of fluid in the brake system. The fluid reservoir needs to be checked first. It possibly may be caused by a bad master cylinder but the most common cause is loss of brake fluid.
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∙ 11y ago
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What are the symptoms of a defective master cylinder?
usually they will leak out the back by the booster, your brake pedal will slowly go to the floor at stops or the brake pedal will go right to the floor when pushed.
What causes brake pedal to go half way to the floor on a 1999 ford explorer?
Something is impairing the brake pedal to go to the floor. Only a mechanic can tell you what is happening.
Can worn brake pads make your brake pedal to go to the floor?
no you have a brake fluid leak somewere
Why does the parking brake pedal go to the floor on a 97 suburban?
probably have broken parking brake cable.
Why does brake pedal feel normal most of time but occasionay go to floor on LX450?
I think you have air in the brake lines.
1997f-350 brake pedal goes to floor?
ouch,are brakes adjusted correctly/ sit in vehical and pump pedal to get a full pedal,then hold pedal to see if it bleeds off and goes to floor,if it stays, replace shoes and pads if it goes to floor, there is a fluid leak somewhere is there brake fluid in the resevoir/ are there any brake fluid leaks ,check backside of wheels there is a brake fluid pump, on the chassis rail about level with the front of the front door on the left side.if this pump is bad your pedal will go to the floor
Can the brake booster cause your brake pedal to go to the floor?
No, a busted brake booster will not cause the brake pedal to go to the floor. It will however cause the brake pedal to be extremely hard to push. A defective master cylinder will cause what you describe. Replace the master cylinder and bleed the brakes. It can because it happened to me. The booster lost vaccum and the pedal went to the floor. Sorry, you are wrong. The only reason the pedal went to the floor was because the master cylinder failed. The brake booster only boosts the pressure on the master cylinder and allows you to not have to push so hard on the brake pedal. Cars of yesteryear did not even have a brake booster and they stopped just fine albeit you had to push the pedal allot harder than with power brakes. A failing brake booster will not cause your pedal to go to the floor although it might cause it to go lower than normal before the brakes apply. As long as the master cylinder is good you will still have brakes, but you will have to really push hard and might even have to pump them up in order for them to stop the car.
Why does your car brake pedal go to the floor?
There are several reasons why your car brake pedal can go to the floor. None of them are good. Your reservoir might be low on brake fluid. Your master cylinder might be worn out. Some of the brake cylinders might be worn out. Whatever it is it is time to get it fixed before you kill someone else and perhaps yourself.
Why does brake pedal go to floor sometimes 96 olds aurora?
sounds like overheating of brake line, either from hot pavement, or cat converter. causes brake fluid to boil and loss of pedal.
Why does brake pedal go to floor?
Defective master cylinder, low of fluid, or leak somewhere else in the system.
What causes brake pedal to go all the way to the floor on a 1994 Honda Accord?
It wasnt assembled right
Why would brake pedal go to floor after engine started?
Low fluid level or defective master cylinder.
