Needing a fuel sending unit
Thread Starter
|
Freshman User
Joined: May 2011
Posts: 46
Likes: 0
From: Le Roy, WV
Needing a fuel sending unit
I am needing a new fuel sending unit for my '84 F350, but I'm having trouble finding one like I have. This is for my front tank along the drivers side frame rail. Mine has a supply tube and a return tube on the top of the sending unit, and a 3 prong plug for the electrical connection. All the parts stores I have checked with, and also a few sites online, only list one with ONE outlet tube and NO return, and only a 2 prong plug.
Any ideas??
Any ideas??
Thread Starter
|
Freshman User
Joined: May 2011
Posts: 46
Likes: 0
From: Le Roy, WV
If mine is for EFI, then will it have a fuel pump in the tank? I haven't taken mine off, but I know the original 460 had a mechanical pump. Also,, I looked at Rock Auto.com, and the plug it shows in the picture is rectangular with the terminals in a row, not round with the terminals in a triangle shape as mine is. I was hoping to buy a new one before I pulled my tank. Might not happen that way.
thanks,
thanks,
This space for rent...
Joined: Apr 2009
Posts: 2,001
Likes: 8
From: In the garage
Someone swapped in a sending unit at some point. Anyways, here ya go:
1986 Bronco w/302 - what you're describing
1984 F-350 w/460 - what you've found
Now revel in the fun of owning old stuff.
Also to add, check your block to see if there's a mechanical pump there, if no, then it's in the tank. I try not to speculate on what people have since these things are getting up there in years...
1986 Bronco w/302 - what you're describing
1984 F-350 w/460 - what you've found
Now revel in the fun of owning old stuff.
Also to add, check your block to see if there's a mechanical pump there, if no, then it's in the tank. I try not to speculate on what people have since these things are getting up there in years...
Thread Starter
|
Freshman User
Joined: May 2011
Posts: 46
Likes: 0
From: Le Roy, WV
Hmmm,,,,, you're good! Not sure why, but if my sending unit has a pump in the tank, the Bronco unit will fit. Just don't understand someone making that kind of change. Only thing I wonder about it that my wiring is correct, and hasn't been spliced that I can see. BUT.... did the Bronco have a side tank? When my sending unit was working, it was very accurate.
My engine had a mechanical fuel pump when I bought the truck, and the steel lines were running up along the frame as they should be. I pulled the 460 and installed a 5.9 Cummins and 5 speed, so I do need the fuel return line for the diesel.
thanks again,
My engine had a mechanical fuel pump when I bought the truck, and the steel lines were running up along the frame as they should be. I pulled the 460 and installed a 5.9 Cummins and 5 speed, so I do need the fuel return line for the diesel.
thanks again,
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
OK, I need more information to be able to find a Ford OEM replacement (if I can).
I can see in the parts catalog that some F250s/350s ever since 1980 had electric fuel pumps.
But reading that the 460 has or had a mechanical pump concerns me, I don't know if perhaps some had BOTH or not. Quite honestly, I would suspect not.
So, let me ask... is the stock factory wiring set up to accommodate an in-tank pump? I read about the old sending unit have a triangular-shaped collection of 3 electrical connections, is there a factory-supplied mating electrical connector in the wiring?
I also need to know:
I'll warn you and say I looked up the availability of some of those in-tank pump/sending-unit-assemblies, and it doesn't look good.... It looks like at least one of them has been superseded (replaced) by a different Ford part number, and I have no way of looking up that number, we'd need to get NumberDummy involved if he can help.
But, the presence of factory wiring (or not) for such a device will be most telling, followed by the other questions......
I can see in the parts catalog that some F250s/350s ever since 1980 had electric fuel pumps.
But reading that the 460 has or had a mechanical pump concerns me, I don't know if perhaps some had BOTH or not. Quite honestly, I would suspect not.
So, let me ask... is the stock factory wiring set up to accommodate an in-tank pump? I read about the old sending unit have a triangular-shaped collection of 3 electrical connections, is there a factory-supplied mating electrical connector in the wiring?
I also need to know:
- Size of tank (in gallons)
- Location of tank - inside or outside of frame rail
- Steel or plastic tank
- Wheelbase length
I'll warn you and say I looked up the availability of some of those in-tank pump/sending-unit-assemblies, and it doesn't look good.... It looks like at least one of them has been superseded (replaced) by a different Ford part number, and I have no way of looking up that number, we'd need to get NumberDummy involved if he can help.
But, the presence of factory wiring (or not) for such a device will be most telling, followed by the other questions......
FTE Legend
Joined: May 2008
Posts: 56,542
Likes: 0
From: In my own world
my 86 f350 with 460 had electric pumpus in both tanks, from the factory. they were different than the efi pumps tho, I cant remember anymore why, but you can nolonger get them. (at least I couldn't) I wound up putting a holley electric pump in the rail, and only using 1 tank
Trending Topics
Thread Starter
|
Freshman User
Joined: May 2011
Posts: 46
Likes: 0
From: Le Roy, WV
The pump isn't my issue,,,,, knowing how much fuel I have in my tank is. My sending unit is sporatic right now,, so I track my miles, and when I get around 225 on it,, I fill up. I'm getting around 18 mpg, so I'm confident that this leaves a buffer. I know when the gauge was working properly, I have gone over 300 miles on a tank (19 gallons), but I don't chance it now. I hate walking.
I will check with Advance Auto Parts or Napa tomorrow to see what can be found. If not,, the link for O'Reilly's will work out.
I will check with Advance Auto Parts or Napa tomorrow to see what can be found. If not,, the link for O'Reilly's will work out.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
This space for rent...
Joined: Apr 2009
Posts: 2,001
Likes: 8
From: In the garage
Hmmm,,,,, you're good! Not sure why, but if my sending unit has a pump in the tank, the Bronco unit will fit. Just don't understand someone making that kind of change. Only thing I wonder about it that my wiring is correct, and hasn't been spliced that I can see. BUT.... did the Bronco have a side tank? When my sending unit was working, it was very accurate.
My engine had a mechanical fuel pump when I bought the truck, and the steel lines were running up along the frame as they should be. I pulled the 460 and installed a 5.9 Cummins and 5 speed, so I do need the fuel return line for the diesel.
thanks again,
My engine had a mechanical fuel pump when I bought the truck, and the steel lines were running up along the frame as they should be. I pulled the 460 and installed a 5.9 Cummins and 5 speed, so I do need the fuel return line for the diesel.
thanks again,
FTE Legend
Joined: May 2008
Posts: 56,542
Likes: 0
From: In my own world
if it works sometimes, the float is probably bad. that being said, early modles had a brass float, later had plastic. you can still get floats, but only the plastic version.
I would keep that truck forever if it gets 300 miles on a front tank. All my gas powered trucks through all the years,, and none have ever done that. My 460 was 10 mpg.Loaded, empty, over the road, 10 mpg.
I would keep that truck forever if it gets 300 miles on a front tank. All my gas powered trucks through all the years,, and none have ever done that. My 460 was 10 mpg.Loaded, empty, over the road, 10 mpg.
Thread Starter
|
Freshman User
Joined: May 2011
Posts: 46
Likes: 0
From: Le Roy, WV
My truck HAD a 460,,, 7.9 MPG. Now it has a 1990 5.9 Cummins, POD injectors, 4" pipes, and the pump is turned up. Does great. Turns 2400 rpm at 70 MPH with 4.10s. I also have 2 F150s with 300/6s,,, @ 15MPG on those.
The gauge was very accurate, but now, once it gets to about 3/8 of a tank, you are walking. And I do plan on having this truck for quite a while. Just need to get a few bugs worked out of it.
Love my truck!
The gauge was very accurate, but now, once it gets to about 3/8 of a tank, you are walking. And I do plan on having this truck for quite a while. Just need to get a few bugs worked out of it.
Love my truck!
Thread Starter
|
Freshman User
Joined: May 2011
Posts: 46
Likes: 0
From: Le Roy, WV
No, the Bronco didn't have a side tank, but that doesn't mean someone didn't make it work (I'm not sure of length differences off hand) or that it isn't off something else entirely. Your best bet is to pull the sending unit and verify the diameter of the sending unit hole on the tank, 1980-84 is 2" and 85-86 is 3 5/8". As to why people would do it, it might of been something they had lying around or all that they could find.... People do what they can to keep stuff running.