Re: Hiss under dash thought I fixed but guess not! more - Saab 900 Bulletin Board - Saabnet.com
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Re: Hiss under dash thought I fixed but guess not! more
Posted by Fred R. (more from Fred R.) on Fri, 4 Jan 2002 01:01:27
In Reply to: Hiss under dash thought I fixed but guess not! more, Dylan, Thu, 3 Jan 2002 23:18:08
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OK,
Had the same problem with my 900T.
There are 2 cans.
One has 2 hose connections.
That is the boost limit switch.
It has a vac. (in) hose then the other hose goes on to the boost gauge.
I had a open vac. leak in my boost switch which keep my gauge from working.
The other can is the vac. sensor that tells the computer what vac. is present in the intake manifold as this changes and the computer needs to monitor this along with other information to control the engine properly.
Also,vac. lines under the dash can get cracks which can make noise ect....
Hope that helps you along!
Fred R.
posted by 206.183.15...
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