No sound from my upgraded Bosch unit.. - Saab Performance Bulletin Board - Saabnet.com
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No sound from my upgraded Bosch unit..
Posted by Aaron Gilbert [Email] (more from Aaron Gilbert) on Sun, 11 Mar 2001 22:57:04
In Reply to: Hooter Valve Sound?, Jeff Malin, Sun, 11 Mar 2001 22:41:38
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On a trip this summer, before I put the 110 valve in (Same one Swedish Dynamics is selling, I believe), the original one went out. As I was having a lot of fun driving at 6000-8000 feet, I really noticed the 'pwsssshhhhh' sound you mentioned, on almost every shift. At first I thought it was another cool noise my car makes, though I hadn't remembered it being there before.
Since putting in the new 110 valve, I get no noise from the valve whatsoever, and transitions between full vacuum and full throttle, or the other way around, are much smoother now.
Aaron Gilbert
1987 9000T 252k miles
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