crazy brake hiss. can't figure it out.

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Old Oct 25, 2006 | 08:48 AM
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Default crazy brake hiss. can't figure it out.

so far, i know it's not the cruise control module, don't think it's the master, but it could be.

symptoms: constant hiss inside the car. goes away when i apply slight pressure to the pedal. when i start the car, the brake light is one for a second, then stays off.

drives me crazy, and is probably not too safe.
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Old Oct 25, 2006 | 08:56 AM
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Mine went away after a bit...if you remember I had it too.
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Old Oct 25, 2006 | 09:00 AM
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Default Ok I think I may have posted this before but if you are hearing a hissing...

down there and you know absolutely 100% sure that it isn't a leak in the vacuum lines & valves connected to the brake & gas pedals from the Cruise Control...then if are you not hearing the heater shutter closing & opening at start up...you are hearing vacuum leaking out one of the lines that controls the shutters behind the dash for the Climate Control system.
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Old Oct 25, 2006 | 09:10 AM
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Default yep, i thought yours was the cruise module. mine's been like this for a year or so...

usually i just turn my stereo up, but it's freaking me out a bit
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Old Oct 25, 2006 | 09:47 AM
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but why would stepping on brakes stop it?
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Old Oct 25, 2006 | 10:03 AM
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Default Ever see the position of the junction box for the lines? Right next to the peddles.

I'm wondering if one of the lines is getting pinched by the braking action.
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Old Oct 26, 2006 | 07:44 AM
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ahhh. worth another look.
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