S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

how does the presure tester tell you where your leak is????

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Old Aug 29, 2003 | 10:01 AM
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how does the presure tester tell you where your leak is????
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Old Aug 29, 2003 | 10:03 AM
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Default It comes with a big arrow that points at the leak.

You'll hear air hissing out of the leak, when you pressurize the system. Kinda like filling a tire with air, and listening for the leak...however in the case of our intake systems, there usually aren't any pinhole leaks...they are usually big a$$ leaks! Usually...
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Old Aug 29, 2003 | 10:05 AM
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lol ok thanx alot
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Old Aug 29, 2003 | 10:28 AM
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Default soapy water works pretty well too...

Once you get the system up to pressure, just spray soapy water on the junctions/coupers/clamps in your intake - if there is a leak, you will see it bubble up.
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