# 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:** 6

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**Author:** ![Justin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/justin/32/7459_2.png) [@Justin](https://forums.speedlife.net/u/Justin)\
**Post date:** [September 11, 2007, 6:45pm UTC](https://forums.speedlife.net/t/n00b-vacuum-boost-leak-question/35218/6 "2007-09-11T18:45:38Z")

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You don’t fill your system with propane :banghead:  
You leave your car as it is…  
Start it…  
Grab your propane bottle…  
Open it toward your suspected boost/vacuum leaks…  
Your engines vacuum will pull in the propane and begin to idle high…  
Leak found.

EDIT: Dave beat me to it.

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