Well I just filled up the truck this morning, and 14 miles later after I got to work the needle is already below the Full line. I also noticed this happening last week when i filled up. And also today when I filled up it read 1/4 of a tank, and it only held 17 gallons, and I had to squeeze that much in. I have never noticed this happening before and I was wondering if anyone else has had this problem. I'm thinking that there may be something wrong with the float but I just really don't know.

 

This is mostly a bump, but mine will not go up when you fill it up while it is running. It will take about 30-60 min before it will get up to full. I hear it is a time delay thing so your fuel gauge doesn't jump around.

 

Thanks for the bump. I didn't have it running, and it was on full, then it dropped down. Then I just noticed when driving to lunch that it was back up to full again, and then it went back down again. And this is with just under 20 miles on the tank.

 

Sounds like a float/sender issue. Good time to tear into it and do the in-tank mods while you're there.

 

If you park facing downhill, you cant put as much in before the pump kicks off because the fill neck is closer to the front of the tank. Parking level or facing uphill helps.

 

I was parked on level ground. It seems to me that when I have started the truck today (this has been 4 times now), it will be on full. Then once I get moving it will slowly make its way down past the full line. The float was the first thing that came into my mind when this happened, so I guess that is the first place to check.

Joe i've definately thought about since the tank will have to be dropped, I will go ahead and do the intanks.

 

Here are three links on the intank stuff. They are in the best to least order, but they are all pretty good.
On mine, I used the long piece of hardline attatched to the frame rail. This cost me two extra clamps, but I think it looks nicer. I would purchase about 5' less fuel line if you choose this method. I used the guzzle parts list for my buying. I got everything at NAPA for just under $40. I did get an inline fuel filter (as did Izzy) instead of the big fancy filter. I just asked for the best 5/16 inline filter that was diesel compatible, but Izzy has a specific p/n.
One final word of advice is get the $10 pipe cutter thing. Any other method will leave too much cleaning to do. The pipes are BIG and I cut the one with a giant tubing cutter, but most people wouldn't have it and it didn't get too close to the top of the tank. The other I couldn't even cut so I left it. It still fills quicker bc I did cut the vent.
That's all I know, good luck.


http://guzzle.rbmicro.com/hutch.html
http://www.itpdiesel.com/other/FuelSys/ITP-TankKit-Manual.pdf
http://www.dieselinnovations.com/tec...k-pump-kit.pdf


I forgot, what type of service can you do on that assembly??? I have always heard they don't sell parts for it.

 

On the cutter, are you talking about cutting for the harpoon mod?

P.S. I sent reps to everyone, thanks for your help.

 

Yepper, there is some fancy PVC cutter they sell at the Depot or Blows, but I don't know what it is called.

PS - Thanks for the reps. Reps to you.

 

It's called a Ratcheting PVC Cutter -- I found it hanging on the end of the aisle where they sell pipes for like $10 (Home Depot).

And there was a thread about fixing the sender not that long ago. IIRC, he used a part off an F150 or something to repair the sender instead of buying the whole ***'y. I'll dig around and see if I can find it.

 

Here are a couple threads. The first one was what I was thinking of -- it was just a cleaning of the variable resistor in the sender.
https://www.ford-trucks.com/forums/6...ry-solved.html
https://www.ford-trucks.com/forums/6...e-problem.html
https://www.ford-trucks.com/forums/6...eads-full.html
https://www.ford-trucks.com/forums/6...-to-check.html

 

Thanks for the links Joe. More reps sent your way.

EDIT: I have to spread it around before I can send you more. If I could send them I would.