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Vacuum leak detection--bad manifold gasket? B230FT 700 1988

posted by  someone claiming to be Steve O on  Tue Feb 10 06:23 CST 2004 [RELATED]

Hey all:

I believe I have diagnosed a rough idle problem to a vacuum leak. I have been using a section of small rubber hose to listen for a telltale hissing in the intake system, and seem to have located something under the intake manifold. The problem is I cannot pinpoint anything--there seems to be a general hissing and nothing seems to change or disturb it--moving hoses, holding a finger on a seam, etc. I would guess that the problem may be a general leak in the intake manifold gasket along the bottom. Is this a problemmatic area, of am I simply hearing the rushing of air through the manifold or bypasss hose? No other part of the pypass hose makes much noise, however. Anyone with a similar experience?
Thanks!

-Steve






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New Vacuum leak detection--bad manifold gasket? B230FT [700][1988]
posted by  someone claiming to be Steve O  on Tue Feb 10 06:23 CST 2004 >


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