moaning/hooting as boost pressure comes and goes?? - Saab 900 Bulletin Board - Saabnet.com
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moaning/hooting as boost pressure comes and goes??
Posted by BWG (more from BWG) on Tue, 18 Sep 2001 12:58:44
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In a effort to isolate the rattle that I have under deceleration in my 93 900 turbo, I have switched my BPV from a Forge valve to a known good 20psi Bosch unit. Now on acceleration and deceleration, as the needle passes from the white into orange or from orange back into white (vaccuum vs. boost), I hear an audible moan/low hum/hoot from under hood. I am trying to pin this noise down. Do good Bosch BPV make noises? Any other thoughts? I have new silicon hoses. Could it be the APC solenoid?
Thanks
Brian
posted by 208.251.2...
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