🔧 BUILD GTPpower's 05 F-350 6.0 PSD

[DEEZUZ]

Also the pump is supposed to shut off within 30 secs

 

[Yaj Yak]

i <3 this thread

 

[GTPpower]

I should quit posting in here. Everytime I do, [MENTION=7923]CTC DEEZUL[/MENTION] makes me spend more money.

 

[DEEZUZ]

its my jerb!

 

[GTPpower]

145,000. Oil and filter change.

I also changed to this winter fuel additive when it got cold. Lubricity isn't quite as high, but gelling is protected down to -20 on the normal dose, and -50 on the double dose. I'll switch back to the regular optilube when spring rolls around.




My old mirrors were pretty crappy and sucked for towing.








My wife bought me new ones for Christmas in the 08+ style. They aren't quite Ford quality, but they were much cheaper and way better than what I had.









[MENTION=7923]CTC DEEZUL[/MENTION] made me spend more money. I wanted to add a fuel pressure sensor, so I had to get a new egt sensor with the expandable eas system.







I added two ports, so I have one extra for the next thing I'm told I need to monitor.





The virgin test port



Got my harness done with the amazon pressure sensor.





New fitting in the pressure test port.



Got it all installed. I'll probably have to get a 45° fitting to move the sensor. The wiring harness is really tight against the radiator hose, so that's probably not good.


But, I've been watching fuel pressure now for two days. This video is at the first startup with the sensor. I was surprised that fuel pressure drops to zero once the pump shuts off. Then, I did a wot pass today. You can see pressure drops in the upper rpms.


https://youtu.be/PCk5VI75DT4

I was about an hour away from home a little while ago. Ingoosed the throttle a little bit, and it felt weird. Looked at the monitor, and fuel pressure was 0.0. I just accelerated normally and FP stayed between 3-6 psi for about a mile. I was thinking something wasnt reading correctly. Then I slowed down to make a turn and it came back up to 55-60 and stayed there for the rest of my trip home.

So, I'm assuming I need a pump, right?

 

[GTPpower]

Double post

 

[crooks]

[MENTION=7923]CTC DEEZUL[/MENTION] the Ford is broke again

 

[DEEZUZ]

Remind me. Do you have the blue spring in the regulator?

 

[GTPpower]

Yes I do.

 

[DEEZUZ]

Damn. That's dropping off quite a bit. If no restrictions in tank then yea pump may be getting weak

 

[GTPpower]

I've noticed the last few months that it sure sounds goofy sometimes.

This is what I need, right?
https://www.dieselfiltersonline.com/pfp58054-racor-fuel-pump-assembly-parfit.html

 

[GTPpower]

Bought a new pump, but haven't put it in yet. I almost always have 55-60 psi. I noticed the last couple days, pressure drops to 10-20 psi, but it always comes back to 60 psi. How likely is it that there is blockage in the tank?

Should I throw some 911 in the tank just in case it's gelling?

 

[DEEZUZ]

I would just pull your filters out first check them

 

[GTPpower]

Is it ok to just reinstall them if they are ok?

 

[DEEZUZ]

The outer o ring seals might be swelled and will bunch up. But that's only worry

 

[GTPpower]

If I let them dry, will they shrink?

 

[DEEZUZ]

If you think there is a tank restriction, remove the fuel line on the module and skip a rubber hose over it and hang a fuel can off the side or in bed and drive it. See what happens is psi still drops..


To me it sounds like the pump is getting weak

 

[DEEZUZ]

If I let them dry, will they shrink?

No, just use dielectric grease and reinstall. Anything fuel or oil soaked will never shrink

 

[GTPpower]

Ok thanks. I'll see if I can work on it this afternoon. Should I change the filters if I install the pump?

 

[HILROD]

The ford pumps I have gotten had a filter in it.

 

[DEEZUZ]

The ford pumps I have gotten had a filter in it.

He's just changing the pump, not the entire module

 

[DEEZUZ]

Ok thanks. I'll see if I can work on it this afternoon. Should I change the filters if I install the pump?

Well, depends how clean you work

 

[GTPpower]

Well, depends how clean you work

Point taken. Thanks.

 

[GTPpower]

Found a 45° fitting at advanced auto...grease gun parts I guess.



Pulled off the cac tube which made access much easier.



The retaining clip on my ebay sensor pigtail broke, so now it's held on with zipties.






I also replaced the fuel pump. 146k miles.



Old pump on top.





I have no idea if this solved my fuel issue. So far so good, but I need to load a hot tune and see if fuel pressure drops.

 

[GTPpower]

I loaded my hottest tune. Fuel pressure still drops to 30ish at wot. What's my next step? Drop the tank and install a new pickup/sender?

My fuel gauge shows an error when the tank level gets to about half a tank, so I'm not mad about replacing the sender. It's done it as long as I've owned it.