4x4 help again... - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 12-22-2009, 03:12 PM Thread Starter
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4x4 help again...

Ok, got motivated on trying to trace my 4x4 leak today. So this is what i have found.

This box is where i think my problem is, not 100% sure.



Its the box right beside the compressor pump on the passenger side.



When i pulled the line off of this line on the pump it sucked to my finger and shut off



And then at the other end of this line out of the pump their was suction and i got the pump to cut off.



So air goes into the box and then should come out the other hose right? Im pretty sure this is where i have a problem. The hose that comes out on the left and then goes down to the hubs isnt getting any air.



Does this sound right? Any advice is apreciated. All i know is that no air gets through the box. Should that be right or not? Just trying to get this problem solved. Thanks for the help in advance.

JD Roper

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post #2 of 7 Old 12-22-2009, 03:24 PM
Other vehicle is an F250
 
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You are welcome to pull it up beside mine and compare notes? I have to work tomorrow, but will be off after that until Monday. I may have to go back to Charlotte to pick up the trailer either Christmas Eve or Saturday. Call me if you want. I'll PM you all my numbers.

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Last edited by Hank; 12-22-2009 at 03:28 PM.
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post #3 of 7 Old 12-22-2009, 03:27 PM Thread Starter
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Thanks Hank. I think i have your # in my phone already. My dad has a PSD so guess i could just look at his. Thanks for the offer though.

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post #4 of 7 Old 12-23-2009, 05:23 AM
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Are you saying that the nipple that the front hub attaches to has no vacuum on the outake side of the chamber? If so take a air hose and blast some air through that nipple and see if that corrects the issue.

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post #5 of 7 Old 12-23-2009, 05:26 AM
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Also are you checking for suction when the switch is turned to 4x4? There isn't vacuum to the front hubs all the time!!

NCH
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2000 F350 DRW,CC,LB, 4X4, Western Hauler Pkg.
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post #6 of 7 Old 12-23-2009, 05:27 AM Thread Starter
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Youre talking about the big black "box" right. On the right side if you try to blow in you cant but you can on the left. Is that my problem? A clog inside the box?

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post #7 of 7 Old 12-23-2009, 05:28 AM Thread Starter
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Yes, when its turned to 4x4.

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