Date: Mon, 21 Sep 1998 20:10:42 -0600 From: "Andrew BW Colfelt" <abwcnopsamspring.com> Subject: Re: Turbo Vaccum leak?
Sounds like you have a comprehensive vacuum hose problem. All of the systems you mention usually draw their power from the vacuum system. The gushing/hissing noise you hear from the dash really is coming from the dash, where the vacuum hose connects to the guage. Since the needle moves a little, the hose is probably just cracked, instead of hanging completely loose. Totally unlikely that it is a sign of any problem with the turbo and/or wastegate. Cruise control and brakes may not be working well because of the lack of vacuum caused by the leak in the turbo guage hose, or there might be another hose or two that are leaking, and/or that hose may have a "Y" in it that feeds both the brakes and cruise control. I wouldn't be surprised if your idle is a tad high, too. It should be =< 1000 RPM under normal conditions. toastynopsam.vipmail.com wrote in message <3606b38c.77413562nopsam.ime.net>... >Hi, i have an 86' Saab 9000turbo - except i don't think the turbo is >doing all that it should. When i start to feel the turbo kick in i >hear this loud wind gushing noise coming from what seems to be the >dash. The APC meter in the dash never seems to get much above the >beginning of the yello part, i don' t think i've ever seen it get to >the middle. I'm wondering if anyone knows anything about this, and if >it is a vaccum leak problem or anythign else with my turbo. The >cruise control doesn't work either (don't know if this has anything to >do with it, probably not) and the brakes don't have very good response >time either. Also, when i start the car cold in the morning, it >stalls a couple times before it'll keep the idle speed up. Any help >on any of these problems would be appreihated, thanks. > >-Chris
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