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What would cause the brake pedal to go all the way to the floor on a 1995 400 Lexus sl?
Wiki User
∙ 14y ago
No fluid or the master cylinder is shot or a wheel cylinder/caliper/brake pipe has failed. Check the fluid level first. Check the driver's carpet and the brake pedal for wetness (master cylinder). Move the car slightly if safe to do so and see if there is a light watery oil where the wheels were, or get underneath and check the calipers/hubs and flexi-hoses for wetness. Next, run your hand along the metal pipes and check for wetness. If there is wetness chase it to the source and replace the failed part. If there is no wetness anywhere it is likely to be the master cylinder that has failed. Unless you are very experienced get the brakes fixed by a garage; lives are at stake.
Wiki User
∙ 14y ago
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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.
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.
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.
Where is the shift interlock latch on a 1994 Lexus ES300?
brake pedal under dash
Can worn brake pads make your brake pedal to go to the floor?
no you have a brake fluid leak somewere
What brake pedal is the cause of air being in the brake system?
The brake pedal has nothing to do with it. If air is in the system then bleed the brakes.
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
What would cause the brake pedal to be hard and still no brake lights on a 2006 Lincoln navigator?
brake switch located on the top of the brake pedal
Why 1990 Geo Tracker brake pedal hard to press?
Hardness in the brake pedal can because by low brake fluid. Air in the brake lines can also cause the pedal to push hard.
What could cause the brakes and brake pedal to stick when brake pedal is pressed?
Check around brake pedal for something rubbing. If OK, I'd look into the master cylinder.
Why does the parking brake pedal go to the floor on a 97 suburban?
probably have broken parking brake cable.
What could cause the brake pedal on a Ford F-150 to fall to the floor?
A COMMON CAUSE FOR A DROPING BRAKE PEDAL WOULD BE A LEAKING MASTER CYLINDER.(INTERNAL LEAK). THERE ARE OTHER REASONS BUT THAT IS A COMMON ONE. YOU ALSO HAVE AIR IN THE SYSTEM, NO FLUID, OR A LEAK SOMEWHERE IN THE SYSTEM(MAJOR LEAK). IF THE PEDAL JUST FELL TO THE FLOOR TRY LOOKING UNDER THE DASH AND MAKE SURE THAT THE PEDAL DIDN'T COME LOOSE FROM THE PUSH ROD AND NOW IS JUST "HANGING".
