Blue Spring Upgrade Issues? - Ford Powerstroke Diesel Forum
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post #1 of 21 Old 11-28-2011, 05:05 PM Thread Starter
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Blue Spring Upgrade Issues?

Just wanted to ask.....

Has anyone experianced any issues with the FPR blue spring upgrade?

I had one installed when I had my #4 injector replaced and my pressure is all over the map I will have 40-50 one min and 0 another then to 30 and so on I just put a used pump that was pushing correct PSI before and truck will run great for a period of time then stumble and die. wait a few min and fire right up run for a bit and stumble and die. I am lost at this point and can only point to the upgrade any thoughts?

2004 F250 6.0 Stock 117500 miles
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post #2 of 21 Old 01-04-2012, 09:06 AM
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Similar issues with mine, here's a link to my thread... figure anything out?

Low fuel pressure after BB and new HFCM

Early 1999 F-250 PSD SCLB
4" Turbo back - DIY 6637
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post #3 of 21 Old 01-04-2012, 10:57 AM
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On my 04, I had to reuse a sealing ring from the old parts that fit with the black poppet to make it fit snugly in the housing. The blue spring upgrade kit did not have this plastic ring. From what I have been reading, it seems there may be some differences on this part is installed in the 03-early 04. Once I installed it the second time, the fuel was up to 62 psi at KOEO.


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2004 (9/16/03 build) 6.0 FX4 Lariat CC
6.5" Pro Comp Lift with Dual MX6 Shocks up Front, 37" BFG KM2's, Power Slot Cryo Rotors & Hawk Pads, Moog Ball Joints, 4" MBRP SS Turbo Back CAT Delete, Coolant Filter, RCD EGR Delete, Zoodad, Harpoon, blue fuel pressure spring, ScanGaugeII, updated turbo drain pipe
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post #4 of 21 Old 01-04-2012, 11:01 AM
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No issues with mine in the 6k miles I've had it. Mine's an 06 though


2006 F350 SOLD
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* Blue FPR spring
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post #5 of 21 Old 01-04-2012, 11:04 AM
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sounds like you may have an injector letting compresion into the fuel system,how long does it run before it starts losing pressure and dies


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post #6 of 21 Old 01-04-2012, 11:17 AM
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I have an earlier 04 and had to reuse the black poppit as well. No issue for me though.


2008 ECLB FX4 all stock
Planning on: Spartan, full 5", EGR delete, 6"on 37's
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post #7 of 21 Old 01-04-2012, 12:18 PM Thread Starter
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Turned out the so called mech that replaced #4 injector left a peice of washer or something in the injector cup which held out the injector enough to let exhaust pass through.

Going back to the old frame of mind that I will be the only one under the hood
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post #8 of 21 Old 01-04-2012, 12:52 PM
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Quote:
Originally Posted by campbell3736 View Post
Turned out the so called mech that replaced #4 injector left a peice of washer or something in the injector cup which held out the injector enough to let exhaust pass through.

Going back to the old frame of mind that I will be the only one under the hood
Built not Bought!


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Planning on: Spartan, full 5", EGR delete, 6"on 37's
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post #9 of 21 Old 01-04-2012, 02:49 PM
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Quote:
Originally Posted by fixxxer-upper View Post
On my 04, I had to reuse a sealing ring from the old parts that fit with the black poppet to make it fit snugly in the housing. The blue spring upgrade kit did not have this plastic ring. From what I have been reading, it seems there may be some differences on this part is installed in the 03-early 04. Once I installed it the second time, the fuel was up to 62 psi at KOEO.
I had a mechanic do the upgrade - if he didn't reuse the sealing ring, any ideas how I could source that piece? I'm sure the old parts were thrown away.

Early 1999 F-250 PSD SCLB
4" Turbo back - DIY 6637
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post #10 of 21 Old 01-04-2012, 02:53 PM
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Quote:
Originally Posted by dieselflash View Post
sounds like you may have an injector letting compresion into the fuel system,how long does it run before it starts losing pressure and dies
I work after a lot of so called mechanics too, they don't know what a torque wrench is,especially on injectors


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