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  #1  
Old 01-07-2008, 03:59 PM
evildragon evildragon is offline
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Brakes failure

The brakes on my fathers 95 Crown Vic (Police Interceptor), doesn't work too well.

If I press the breaks, and sitting at a red light, the brake will just "drop" to the floor slowly, and release brake pressure, causing the car to roll.

Also, if I press the brakes, let go a little, and press again, it goes right down to the floor instantly.

Pressing the brakes hard and fast also cause it to go to the floor, but make the power booster "area" make a whine sound.

My father can't tell if it's the master cylinder or the power booster.

Any ideas?
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Old 01-07-2008, 06:46 PM
Stick462 Stick462 is offline
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Re: Brakes failure

The Diafram (rubber gasket) is broken in the power brake booster.Replace the booster and your problems will be fixed
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Old 01-07-2008, 07:19 PM
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way2old way2old is offline
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Re: Brakes failure

If the pedal falls to the floor, it is the master cylinder by-passing internally. Replace the master cylinder. If it were the booster, the brake pedal would be really hard to push.
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Old 01-07-2008, 07:44 PM
reekor reekor is offline
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Re: Brakes failure

I agree with way2old on this one.

Quote:
Originally Posted by way2old
If the pedal falls to the floor, it is the master cylinder by-passing internally. Replace the master cylinder. If it were the booster, the brake pedal would be really hard to push.
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