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Fuel Pump Replacement

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Old Oct 14, 2009 | 01:06 PM
  #16  
O's Fan Rich's Avatar
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Not trying to hijack your thread Matt, but the truck I'm working on (97f250hd) has a 4" body lift.
It looks like I could pull the pump assembly out without removing the bed.

Does this seem plausible?
 
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Old Oct 14, 2009 | 03:42 PM
  #17  
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Originally Posted by mattop
What exactly is the sock?

Thanks,
matt
Originally Posted by subford


/
Here in Subford's pic you can see it at the bottom of the pump assembly. It's also referred to as a strainer.



Originally Posted by O's Fan Rich
Not trying to hijack your thread Matt, but the truck I'm working on (97f250hd) has a 4" body lift.
It looks like I could pull the pump assembly out without removing the bed.

Does this seem plausible?
You can try, but i think it would be easier to move the bed. You have the locking ring you need to tap out and you'll probably have a hard time angling the pump assembly out of there.
 
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Old Oct 14, 2009 | 03:49 PM
  #18  
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Subford,

I do not appear to have any pinched fuel lines, and I don't believe I have a check valve. Would that be near the "T" or at the pump itself. I was able to contort myself enough to get a view of the top of the rear tank where the lines enter and I don't think I saw a check valve, just the hose couplings I would guess. Is my next move taking off the bed and pulling the pump out? I'm getting the WD-40 right now because I have a case of "rusty bolts".

Matt
 
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Old Oct 14, 2009 | 04:21 PM
  #19  
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From: Easton,Ks
Yes the check valve would be at the pump connection.
You will more than likely have to spray those bolts for two or three days.
When you go to take them out have someone stand on the bolt head, sometimes this helps to keep the bolt from turning. If it spins you will have to weld a nut on top of the bolt or cut the head off with a die grinder.
Do not forget to take the fuel filler hoses off of both tanks and unplug the bed before you lift the bed.
Yes the sock is the filter at the bottom of the Fuel Delivery Module.
 
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Old Oct 14, 2009 | 04:24 PM
  #20  
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How do the tail lights disconnect?
 
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Old Oct 14, 2009 | 04:30 PM
  #21  
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From: Easton,Ks
Originally Posted by mattop
How do the tail lights disconnect?
They unplug right in front of the rear bumper by the drives side frame rail.
 
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Old Oct 14, 2009 | 09:02 PM
  #22  
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Put a new 19 gallon tank in mine and new pump, worked all good then about 2 days later the sending unit stopped working. Make sure your connections are good because now i have to take the tank back off.
 
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Old Oct 14, 2009 | 09:13 PM
  #23  
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Is the sending unit part of the new pump that I will install or is it a separate part that I should replace while I have my bed off, provided I can break the bolts loose!
 
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Old Oct 14, 2009 | 09:15 PM
  #24  
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From: Up Up Upstate, NY
Its the thing on the pump that looks like a bobber to measure how much gaz you have.
 
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Old Oct 15, 2009 | 06:28 AM
  #25  
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From: Easton,Ks
Originally Posted by mattop
Is the sending unit part of the new pump that I will install or is it a separate part that I should replace while I have my bed off, provided I can break the bolts loose!
If you get just the FDM (around $150) then you use your old sending float part, you do not take it off.
If you get the whole unit (around $350) from the top of the tank down then yes the sending float part will come with it.

The part at O'Reilly Auto Parts.
Motorcraft - Fuel Sending Switch for 19 Gallon Plastic Tank Aft Axle, Part Number: PS-23;


/
 
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Old Oct 15, 2009 | 07:36 AM
  #26  
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How can I tell if I have a bad FDM or a bad sender, or is it best to just replace the whole thing?
 
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Old Oct 15, 2009 | 07:45 AM
  #27  
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From: Easton,Ks
If the fuel gauge is working then you just need the FDM.
If you want to spend the money go to Ford and buy the whole thing.
Or you can get the whole thing from:
FTEPartsGuy.com

He is a Sponsor on this site.
 
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Old Oct 15, 2009 | 11:07 AM
  #28  
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If It's better to remove the bed, sounds like I should plan on replacing both pumps, flush the tanks and lines and be done with it!

Gotta pull the trans anyway.
 
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Old Oct 15, 2009 | 11:32 AM
  #29  
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The front tank can be lowered enough to remove the fuel pump without having to remove the bed. It's just the back tank that's a pain.
 
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Old Oct 15, 2009 | 11:40 AM
  #30  
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That figures! Well, I'm looking forward to tackling this, sort of. Now I just have to wait for the rain to stop! Thanks to everyone who has helped me out with this so far. I think I have a good idea of what I need to do. I'm most worried about getting those darn bolts broken loose.
 
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