Windstar/Aerostar The beginning of the minivan for Ford.

Vacuum Leak location?

  #1  
Old 06-02-2019, 07:36 PM
Junior Member
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Join Date: Jul 2012
Posts: 7
Default Vacuum Leak location?

I believe I have a vacuum leak, but don't know where to look to find it. The only thing I know for sure it is affecting - is the fan when I go up hill or have to accelerate hard. At that point the fan (with the a/c running) stops blowing out the front vents and tries to go out thru the defroster. As soon as I start down hill or step off the gas pedal the air comes out the front vents like it is suppose to. Haven't noticed the problem with the heat going down thru the bottom vents - just the a/c with the front vents. Any help to point me where to look for the leak would be appreciated.
 
  #2  
Old 06-03-2019, 02:36 AM
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Join Date: Jun 2010
Posts: 9,164
Default

There is a vacuum reservoir that looks like a large Tomato juice can, It might be a good idea to check that can for having a rusted through spot with a possible hole that may be leaking. Let's start by confirming the reservoir is is not losing vacuum.
 
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