Question about 2002 Ford Escape

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2002 escape hissing from inside under/by brake pedal. when pressing on brake hissing stops. Is this the booster? Help

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You have done the brake booster.Its a mechanic shop job.If you jab the brake a few times in a short sequence,the motor should slow down just a fraction.It might.Hope this helps

Posted on Feb 03, 2010

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Hi renault scenic 2l auto 2002. another common problem.


hissing noise is a leaking diaphram inside power brake booster.you have to replace the power brake booster.

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The air seeping is a dead giveaway. Your power brakes are now manual brakes, but stiffer. The diaphram in the brake booster has torn and the hissing noise is the engine vacuum escaping (you hear it louder when you depress the pedal right?). Replace the booster and you will be fine. The brake lights probably don't work because you can't push the pedal down far enought to release the switch. Please rate. Thanks.

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Hissing sound coming through boot on brake pedal of 2005 ford escape. Is the brake booster leaking


A hissing sound when depressing the brake pedal is an indication that the booster is leaking. Another indication is that the pedal will be more difficult to push down before starting the car after it has been sitting for a while. A faulty brake booster will only make it more difficult to apply the brakes. However, it should be noted that a leak in the booster may be caused by brake fluid leaking from the master cylinder into the booster and this could become a dangerous problem.

Aug 21, 2011 | 2002 Ford Escape

1 Answer

Brake pedal hard to press has a hissing sound


Check the vaccume line going to the brake booster. BUT if you can hear a hissing sound from inside and the pedal is hard to press more than likely your going to need a new brake booster and a new brake master cylinder.

Jul 31, 2011 | 1995 Plymouth Voyager

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What is the sympton for bad break booster.i am confused--will the brake pedal be hard to push down or way to easy to push to floor. i have hissing sound in warm weather near brake pedal but not in cold...


Hello rickyjkoch: My name is Roger and I will help with your question. With the engine off, press the brake pedal down several times. Hold the pedal down and start the engine. The brake pedal should drop 1 1/2 to 2 1/2 inches toward the floor. If the pedal stays up and does not drop the booster has a problem. However if you hear a hissing sound from the dash area of the brake pedal the booster should be replaced. Should you need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger

Jul 30, 2011 | 2005 Ford Escape

1 Answer

I can hear a hissing noise coming from the brake pedal on my 2002 Ford Escape. Its been there for a little while. Sometimes the brakes doesn't work properly, it feels a little spongy sometimes. But usually...


It sounds like the rubber diaphragm in the brake booster has developed a leak producing the hissing / sucking noise. The only option is to replace the booster as a complete assembly as they need specialist tools to repair. If the booster fails completely you will still have brakes but the pedal will be very hard and it will take a lot of muscle power to stop vehicle. Best to have booster replced soon before you experience situation described above.

Nov 07, 2010 | 2002 Ford Escape

1 Answer

My 2003 ford expedition just started a hissing noise near the brake pedal that stops when I press on the brake pedal


most likely have a bad diaphram in the brake booster that hisssing sound is vacuum leaking under hood there will be hose going to brake booster unhook hose and pinch off hose start car does hissing sound disappear if so bad booster

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2005 Ford Escape Hissing sound


The power brake booster has a bad valve. I can't suggest where to find a new valve for it, but you can buy a rebuilt replacement. They are usually not hard to put on.

Jul 02, 2009 | 2005 Ford Escape

1 Answer

When u press on the brakes on my expedition, i hear air escaping.


If it is a constant hiss with your foot on the pedal, you have a bad brake booster. If you hear a hiss, and nothing else while holding the pedal, it is the air escaping from the booster boot, and should not pose a problem.

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2 Answers

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Hello;
Yoou most likely have a vacuum leak in the line from the booster to the intake. It could be a bad booster or check valve as well.
Thanks;
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RPM Northwest

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