Air sound over 10 psi? - Ford Powerstroke Diesel Forum
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Old 03-21-2013, 07:46 PM
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Air sound over 10 psi?

Hey guys, ive had a possible air leak for the past 5 months and im wondering about the possible locations of where this could be from? It sounds like its possibly from the drivers side, ive heard that its the y-pipe many times but i want to get more simple things ruled out before i go take everything apart. If it helps any, i get 20-21
pounds of boost at WOT. Thanks in advance!
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Old 03-21-2013, 07:54 PM
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Have you checked the CAC boot off the turbo? Mine was, for the lack of a better term, webbing, or shredding on the back side. It looked like mesh.

Remove it for a good inspection.

When the engine is cold, you could start the motor and quickly feel for leaks around the y pipe. I have put a piece of string on a stick and put it up near all the joints to see if a leak would blow the string around. (Flash light also needed)
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Old 03-21-2013, 08:07 PM
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Where is the CAC boot located on the turbo?
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Old 03-21-2013, 08:38 PM
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BLUE, layered silicone.
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