Question about 1997 Geo Prizm

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Brakes work but pedal slips and goes to floor car keeps rolling ?

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If no brake fluid leaks, it's probably the master cylinder.

Posted on Oct 11, 2010

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1 Answer

Bleed brake but still goes to floor


you need to bleed it with the car running

Nov 25, 2012 | 2003 Kia Rio

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My brake pedal goes all the way to the floor


Brake pedal goes to the floor? When does it happen. That is the most important piece of information. Most brake systems are power assisted via vacuum from the engine. Your brake booster is what makes the "power assist" work. There are some specific times when you will feel your brake pedal "fade" to the floor and it is normal due to the cycle of the brake components operation.If your brake pedal goes to the floor every time you step on it, stop driving and get to a repair facility! If the pedal is working when driving and the vehicle seems to be working as it always has, then chances are there is no concern. To be on the safe side, have it checked the next time you are in for any other type of service.There is a sensor inside most brake reservoirs that activates the indicator light in your instrument cluster when the level is lower than it should be. As your brake pads wear down, the system requires more fluid so the level at the reservoir drops setting the light. Same thing if there is a leak. The fluid level drops and the light goes on. This brake fluid leak would most likely be combined with a spongy pedal or a pedal fade every time you step on the brakes. A leak would also almost always have a wet area around the leak. Sometimes the leak can be internal to a part of the car you cannot see, so don't count on it.One easy way to check most brake boosters and the brake system for leaks is to turn the vehicle off and pump the brake pedal. Every time you depress the pedal you should feel the pedal "height" come up and the pedal get harder. After a few firm pumps of the pedal, hold it down. Leave pressure on the pedal for 20 seconds or so. Does the pedal move slowly (or quickly) to the floor? If so then there is a leak somewhere in the system. Keeping pressure on the brake pedal, start the vehicle. Does the pedal no drop? It should. That is the power assisted vacuum kicking in as the engine starts to run.The bottom line is that we are talking about your brakes. Your life, your passengers lives and the lives of others on the road around you depends on that system working properly. If you have any doubts, or feel uncomfortable, take it in to have it looked at. Know specifically what it is doing so that you can have your repair facility look at what you are feeling and tell you if

Oct 29, 2011 | 1987 Nissan Pickup

2 Answers

When driving and applying the brakes pedal goes to the floor brakes do stop but no peddle . looking for a diagram of the fuse boxes and such


perhaps the master cylinder is sick put a little pressure on the pedal and keep your foot on the pedal just to keep it hard a little if the pedal goes down slowly the it s the master

Jun 19, 2010 | 1995 Ford Ranger Supercab

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98 wrangler - brake pedal goes all the way to the floor. The master cylinder and all brake lines are free of leaks. I'm not losing any brake fluid anywhere. I replaced the booster that is attached to the...


You changed the master cylinder and vacuum booster and have no leaks anywhere, but did you bleed the entire brake system after you did this work? A little bit of air in any of the lines will make the brakes ineffective.

May 30, 2017 | 1998 Jeep Wrangler

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My abs light comes on and my trackion light shuts off and the pedal goes to the floor . Ihave new breaks and there is no problem , this is on a 2000 pontiac grand prix what could it be and is it safe to...


If the brake pedal goes to the floor with the car off, I would suspect air in the system or some other issue with the service brakes. If you feel and hear a growl in the pedal when it goes to the floor then your abs controller may be at fault. There are many possibilities. In either case if your pedal goes to the floor, then you are looking at a safety issue. Generally the service brake system (regular brake system) is the fault and not the abs. I have however seen a sticking dump valve or faulty wheel speed sensor cause an abs issue. Start with the basics first. Leaky wheel cylinders/ calipers, brake lines, or master cylinder. Verify the hydraulic integrity of the service brakes before tackling an abs issue.

Nov 19, 2009 | 2002 Buick Rendezvous

1 Answer

Excessive brake pedal travel and 'soft' brakes


the brakes have to be bleed you wrote that when you start the car the pedal goes to the floor that means the booster is working fine take it back and tell them you want the brakes bleed

Nov 14, 2008 | 2003 Honda Accord

2 Answers

97 ford e350 brake pedal goes to the floor...


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

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