Re: What is that horn like noise in the dash?? - Saab 900 Bulletin Board - Saabnet.com
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Re: What is that horn like noise in the dash??
Posted by ChrisM [Email] (more from ChrisM) on Thu, 15 Jan 2004 06:11:36
In Reply to: Re: What is that horn like noise in the dash??, vsfoxe [Profile/Gallery]
, Wed, 14 Jan 2004 20:14:28
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Sounds like one of two things:
1- It might be your 'hooter valve' (hence the name), that kinda sounds like a goose-liike noise, thats the best way i can describe it
2- Sometimes, older vacuum lines develop tiny cracks in them that only leak under high pressure. As the air passes through them, it causes a sweaky type noise.
Id try to see if the bypass valve holds vacuum, if it doesnt, your valve is shot. If that checks out try replacing all the vacuum lines. You can get by with about 4 ft of hosing.
posted by 204.76.128...
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