AD2 droppped 25 psi! - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 04-29-2013, 06:14 AM Thread Starter
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AD2 droppped 25 psi!

Started my truck this morning, let it warm up for about 10 mins, idle psi at 65.
made it about halfway to work, about 2 miles, and watched the needle drop from 65psi to around 40psi. It would sustain 40psi but the adjuster was at 65.
whats going on?

2005 Lariat 6.0
4" TB exhaust to 6" tip
Tuned by the Wildman
Warren 190's
AD2 sumped
Studs and gaskets
EGR delete
CCV/Zoodad
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post #2 of 7 Old 04-29-2013, 06:31 AM
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On my 3rd ad2. Mine will always idle between 55 and 60 and at wot go to like 25. If i drive nice its fine. Usually every new pump i set at 68 and will drop to 65 at wot. Everytime i call and complain all they say is that they redesigned it


2005 King Ranch, arps, oem gaskets, pmax, 190's/100's bu warren, egr delete, 5 inch exhaust, sct tuned by quick tricks/innovative/gearhead, suncoast trans, custom paint work work
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post #3 of 7 Old 04-29-2013, 06:56 AM Thread Starter
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it would hold 40 if I was real easy with it. so I just limped her home and parked it for now.
what's the o-ring kit they include in the box for?

Edit - Just got off the phone with pureflow. They're sending me and "updated" pump...

2005 Lariat 6.0
4" TB exhaust to 6" tip
Tuned by the Wildman
Warren 190's
AD2 sumped
Studs and gaskets
EGR delete
CCV/Zoodad

Last edited by Blackcloud413; 04-29-2013 at 07:08 AM.
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post #4 of 7 Old 04-29-2013, 08:54 AM
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Yeah 40's way to low! Yeah ive had 3 updated pumps. 2 took a dump so lets see how the third one lasts.


2005 King Ranch, arps, oem gaskets, pmax, 190's/100's bu warren, egr delete, 5 inch exhaust, sct tuned by quick tricks/innovative/gearhead, suncoast trans, custom paint work work
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post #5 of 7 Old 04-29-2013, 09:52 AM Thread Starter
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did you build a 10awg wiring harness or use the one supplied?

2005 Lariat 6.0
4" TB exhaust to 6" tip
Tuned by the Wildman
Warren 190's
AD2 sumped
Studs and gaskets
EGR delete
CCV/Zoodad
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post #6 of 7 Old 04-29-2013, 10:18 AM
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I just used the one they gave me


2005 King Ranch, arps, oem gaskets, pmax, 190's/100's bu warren, egr delete, 5 inch exhaust, sct tuned by quick tricks/innovative/gearhead, suncoast trans, custom paint work work
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post #7 of 7 Old 04-29-2013, 01:18 PM Thread Starter
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I got home for lunch and started it, held pressure just fine.
took it around the block, still held pressure.
I drove it to work with zero issues. So idk whats going on.

2005 Lariat 6.0
4" TB exhaust to 6" tip
Tuned by the Wildman
Warren 190's
AD2 sumped
Studs and gaskets
EGR delete
CCV/Zoodad
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