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what's the best way to check for vacuum leaks? 200 1989

posted by  woofpack4 on  Sun Jun 4 20:53 CST 2006
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last visit: Tue Nov 1 12:32 CST 2011
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So I've read some threads about using low flowing gas (butane or propane I believe) to check for vacuum leaks. But since I don't readily have access to either of these gases, is there an easier way to check for vacuum leaks?

Working in the engine compartment, when I slowly open the throttle I hear a hissing that sounds like air being sucked in through a small space (somewhere along the intake line) but even after checking to make sure all the connections are tight, she still hisses when the throttle opens.

Is this even a leak? I'm thinking it might be since an abrupt full throttle (like punching the accelerator) causes the engine to stumble a bit.......






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