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Old 02-10-2001, 01:59 AM
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I have changed my rear brakes, and it started to hiss when I try to press brakes espcailly if I'm on a declined ground.

it sounds like "ssssssssssssssssssss" whenever , So any body have any clue about this. Is it the new brakes problem or anything else.

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Old 02-10-2001, 08:45 PM
MikeTangas's Avatar
Senior Member
Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
It would help if you let us know what year and model you are talking about.

I'm betting it is a vacuum leak in the vacuum booster, possibly from a bad diaphram. Does it hiss whenever you have your foot on the brake, but not hiss anytime else? Does the pedal feel different since the hissing started?
Mike Tangas
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Only 8,173 units built from 5/71 thru 11/72

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Old 02-11-2001, 02:26 AM
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About the car model it's E200 92.

About the brakes, yes some times when I'm driving I hear the hissing sound on the brakes and when I press brakes a little bit the sound disappears.

But Whenever I press brakes I hear hissing, espcailly if I'm on a high speed or declining ground.

The sound started when I have changed the rear brakes and the rear brake drums.

About the pedal, I think it's the same nothing changed.

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Old 02-13-2001, 04:17 AM
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how is looks like, is its shape like "J" letter!!

and why it needs experts do it, it is easily damaged.
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