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When ever i apply brake the pedal alway goes down gradually while the car still stop. what is the problem.thanks

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Check brakes and rotors if worn down and need replacement will get some pedal travel --if brakes are good then look and test for leak--check brake hoses [ especially the flex lines ] for bulges --may need to bleed lines do to air in system

Posted on Apr 18, 2017

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Air in brake lines. ...They might need bleding....Check your brake fluid also

Posted on Apr 18, 2017

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Usually master cylinder problems will cause that.

Posted on Apr 18, 2017

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I have a 1990 corvette, when I step on the brakes my idle picks up to about 1500 t0 2500 and I also can hear air down by my foot.


how to test a brake booster

https://www.youtube.com/watch?v=ogXIHfrhXsQ

or
Run the engine for one or two minutes, and then stop it. Depress the brake pedal several times at normal foot pressure. If the pedal goes down further at the first time, but gradually rises after the second or third time, the brake booster is functioning properly.


.
check the brake booster internal membrane /boot is ok

is its non return valve ok

Jan 18, 2017 | Cars & Trucks

2 Answers

2005 Camry. Having difficulty when I apply brakes. Pedal goes almost to floor. Eventually stops. Had brake pads, drums and calipers checked, they seem fine. Any suggestions ?


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.

Jan 02, 2015 | Cars & Trucks

1 Answer

Brake goes to the floor


when you say goes to floor is that quickly if so look for a puddle under car after pressing pedal down if not most times if the pedal goes down like sitting at light gradually going down is a sure sign of bad master cylinder

Apr 12, 2014 | 2001 Oldsmobile Aurora

1 Answer

Brake problem isuzu trooper brake pedal goes solid half way down and braking very poor


your master cylinder is gone. when stopped apply pedal and hold let up slightly then reapply if pedal sinks to floor master is bad

Apr 12, 2013 | 1989 Isuzu Trooper

1 Answer

Vw golf 2000 the brake pedal is to soft when you apply it and seems like is not going to stop but it does, what is the problem?


Not sure if you have done all this.



BRAKE BOOSTER INSPECTION

Functional test:
1. With the engine stopped, Depress the brake pedal several times, then depress the pedal hard and hold that pressure for 15 seconds. If the pedal sinks, the master cylinder, brake line or a brake caliper is faulty
2. Start the engine with the pedal depressed. If the pedal sinks slightly, the vacuum booster is working. If the pedal height does not vary, the booster or the check valve is faulty

Leak Test:
1. Depress the brake pedal with the engine running then stop the engine. If the pedal height does not vary while depressed for 30 seconds, the vacuum booster is OK. If the pedal rises, the booster is faulty
2. With the engine stopped, depress the brake pedal several times using normal pressure. When the pedal is first depressed, it should be low. On consecutive applications, the pedal height should gradually rise. If the pedal position does not vary, check the booster check valve.

Check valve test:
1. Disconnect the brake booster vacuum hose at the booster.
2. Start the engine and let it idle. There should be a vacuum available. If no vacuum is available, the check valve is not working correctly. Replace the check valve and retest.

END TEST

Nov 06, 2012 | Volkswagen Cars & Trucks

1 Answer

Metal on metal noise when driving. Sounds like brake noise when brake pads are in need of replacement. Sound goes away when the brake is applied. Car only has 20,000 miles on it (2006).


Hello tgiro7: My name is Roger and I will help with your question. The fact the noise goes away when stepping on the brake pedal says the problem most likely is in the brake area. The pads could be worn out even at 20,000 miles.If the noise sounds like it comes from the front remove the wheels and check the front pads. If the pads are bad most likely the rotors are also bad.Same would apply if the noise emits from the rear. When you have the wheels off check to make sure the calipers will slide in and out on the mount pins. Should they be stuck on binding the pads will wear excessively and prematurely fail. The calipers must move freely on the pins. If you drive with your left foot on the brake pedal? The amount of pressure required to apply the brakes and not stop the vehicle is 1 to 2 pounds of pressure. Wont turn on the brake lights but will put pressure on the calipers. This in turn will wear out the brake pads. Another thing to look at would be an out of adjustment brake switch. Reach down and grab hold of the brake pedal. Give a firm tug on the pedal. Should you feel the pedal give and hear a click or two the switch was set to deep and holding the brakes on.
Should you need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger

Jun 16, 2011 | Chrysler Crossfire Cars & Trucks

1 Answer

1993 ford mustang brake pedal goes down on its own and brakes


Check the vacuum brake booster and check valve maybe there is a problem there that is amplifying the vacuum inside the booster and applying the brakes. I hope this helps, let me know.

Aug 02, 2010 | 1993 Ford Mustang

1 Answer

Brake problems


Thank you for allowing me to assist you, Before we do anyhing, I need some additional information.
Please respond to the following 5 questions so that I may be able to help you better.
Is you vehicle front disc/rear drum or front disc/rear disc?
When were the brakes changed last?
If so, front or rear?
If you apply the park brake, does the vehicle move at all when you put it in gear?
Finally, I am understanding that the brake pedal goes to the floor, you have no resistance on the pedal, and the vehicle does not stop when applying the brakes. Da?

Oct 08, 2008 | 1991 Toyota Previa

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