# N00B Vacuum/Boost leak question...

**URL:** <https://forums.speedlife.net/t/n00b-vacuum-boost-leak-question/35218>\
**Category:** NYSpeed Automotive\
**Created:** [September 11, 2007, 6:32pm UTC](https://forums.speedlife.net/t/n00b-vacuum-boost-leak-question/35218 "2007-09-11T18:32:58Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![fairgentleman\_Z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fairgentleman_z/32/7263_2.png) [@fairgentleman\_Z](https://forums.speedlife.net/u/fairgentleman_Z)\
**Post date:** [September 11, 2007, 6:37pm UTC](https://forums.speedlife.net/t/n00b-vacuum-boost-leak-question/35218/2 "2007-09-11T18:37:43Z")

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I’ve _heard_ that an unlit propane bottle (that is turned on) can help.

Car idling, propane bottle opened but not lit, trace vacuum line with propane nozzle…

engine revs up, you found area of leak.

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