5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

how to find vacuum leak?

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Old Oct 8, 2010 | 08:24 PM
  #1  
marlyman's Avatar
marlyman
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Joined: May 2008
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From: california
Default how to find vacuum leak?

any ideas? im told i got a vacuum leak cuz my throttle like sticks on an it has nothing to do with throttle cable or return spring no leaks on the throttle body an cleand out iac an tps with seafoam an nuthing an i was looking at the small plastic tubes by firewall on passenger side dunno wat there calld but they're all intact an plugd in correctly so duno...any ideas ?
Old Oct 8, 2010 | 08:51 PM
  #2  
Bubba 95SN's Avatar
Bubba 95SN
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Joined: Apr 2009
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From: N.C.
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Unplug vacum lines at source and block off. drop in rpm then plug back in use propane torch,unlit, when at source of leak rpm will change. Can use ether-carb cleaner
Old Oct 8, 2010 | 09:07 PM
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flamin87
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use starting fluid, it works better!
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