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Need Help Locating a Vac/Intake Leak!!
Posted 22 March 2006 - 10:05 PM
- What are some ways to locate it exactly? Or more accurately?? I'm stumped.
Is there a common location on '91 Legacy's that have this problem...It's causing all kinds of idle problems....Thanks for the help!@
P.S. Pictures would REALLY help me out too...I don't have a manual...and I'm a little to broke at the momment to buy one for $16-20!!
Posted 22 March 2006 - 10:52 PM
Posted 23 March 2006 - 12:00 AM
Posted 23 March 2006 - 07:07 AM
i saw a guy at the shop i take my stuff to get inspected with the exact same car and issue. pretty sure it was an intake manifold gasket leak. but each instance can be something different.
just get a can, start spraying and ask if you have any questions. won't learn until you try it. it's really simple, point and push the button.
Posted 23 March 2006 - 07:41 AM
Posted 23 March 2006 - 09:22 AM
Posted 26 March 2006 - 03:42 PM
Posted 27 March 2006 - 07:54 AM
A "vacuum leak" is an unintended opening at the intake side that "leaks" vacuum; in other words, it's a low-pressure area when the engine is running, and will suck in things that are at higher pressure, like atmosphere or a test fluid. So spraying the "fake smoke" into the intake therefore wouldn't be useful with the engine running, since it won't exit at the area of the leak. It possibly won't be evident with the engine off, either, since not much would be propelling it towards the opening. I'd also be concerned about how that gas mixture might affect a running engine. Why not try the other suggestions first?
[...]At work we use this fake smoke to test smoke detectors...I was wondering about spraying that into the intake after the airfilter and seeing if the smoke would leak out...I'm thinking that it would probably work better to not have the car running, as the fan would blow any smoke away from it's point of leakage.....this stuff is made out of "ISO Butane and propane"....Has anyone used anything similar to find leaks???[...]
Posted 24 April 2006 - 11:42 PM
Posted 25 April 2006 - 03:23 PM
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