low boost pressure?????? need help
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Senior User
Joined: Jan 2012
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low boost pressure?????? need help
somewhere I have lost some serious boost pressure. when I mash on the throttle I'm only hitting 15 lbs. where normally I am hitting 25 - 27. why? and where to start looking?
Hotshot
Joined: Jan 2011
Posts: 18,849
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From: Puget Sound
I'd start by looking for soot and listening for leaks near the pre-turbo exhaust. You could also have a leak up top after the turbo. There is a test method for this, but I have to get to work so I don't have the time to grab the link - maybe someone else can link the 4" adaptor test. You might find some help in the last link in my signature.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Here is one way to check for boost leaks at the turbo, IC, and intake spider connections. https://www.ford-trucks.com/forums/1...ctor-pics.html Large boost leaks can usually be found in these areas.
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sgrol
1999 - 2003 7.3L Power Stroke Diesel
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Jan 29, 2007 02:13 PM
