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Re: Screeching sound when turbo needle touch the red line Posted by Bernie [Email] (#1501) [Profile/Gallery] (more from Bernie) on Sat, 4 Jun 2022 12:19:09 In Reply to: Re: Screeching sound when turbo needle touch the red line, Michel_DDO [Profile/Gallery] , Sat, 4 Jun 2022 07:50:31 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Hello,
It could be a small leak such as the side of the intercooler that could make a high pitched rapid vibration type screech. I guess a smoke test test might show that. Only diesel Saab's and a few early 90's spg's have egr valves so that rules that out. But I have had clogged exhaust such as a melted cat or internal muffler failure that can cause a nice screech under throttle. Good Luck, Bernie
_______________________________________ George Riggin Specialty Automotive Current Saabs 1993 900 Turbo Conv. 1993 900 Turbo Conv. Auto 2003 9-3 Conv 2004 9-5 Arc Sedan 2005 9-3 SS 4 door 2005 9-3 SS Conv 2007 9-5 Aero Sedan 1986 900 Turbo Conv A few parts cars also
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