My 2010 F350 6.4l left me sitting with air in the fuel line when it indicated there was still 30 miles left to empty. I can run 85 miles on a full tank before the fuel gauge ever moves. When the fuel gauge is indicating 1/2, I can put 20 gallons in a 30 gallon tank. Is anyone else having these sort of issuses? Can the sending unit be calibrated?

 

The tanks are huge, it leaves a lot of space for fuel to slosh around and get air in the line. 30 miles is already empty that and the gauges are not very acurate.

 

This has happened to me twice! Once left me roadside at 4 am and again today. This time, the needle wasn't even near the red line (it was half way between the red and the first tick mark - 1/8th tank) and the Low Fuel Message - 50 Miles to Empty - had just illuminated 4 miles earlier. Last time I had to pay the dealer over $150 for the diagnostics & purge at the dealer. Ford has refused to cover this under warranty. We'll see but I'm sure I'll be forced to pay again.
Any updates on your issue FastEddie? Did you have to pay to fix this or did Ford cover it? I have only 8,600 miles on the truck & well under warranty.
Thanks!

 

Fuel moves around in the BIG tank. The gauges are not very accurate. Don't let it get below 1/3.

 

yea soon as that lite comes on, get fuel..

its also NOT good for teh fuel pump to let it sit in open air, they are designed to be submersed in fuel all the time to aid in cooling.

 

If you waited for the light to comr on you waited to long. You'll have fuel in the tank and air in the lines. I get payed pretty often to restart big rigs. My best customers.

 

Yeah me too... Sorry double post. LOL

 

I have an aftermarket tank,(54 Gal), My gauge can be on empty or above 1/4 depending on if I'm facing uphill or downhill...I fill up when it reaches 1/2...

Lou

 

I know this post is over a decade old, but this same thing has been happening to me with my 2008 F250 King Ranch diesel for years. The gauge will show about 1/8th of a tank remaining and the Lie-O-Meter shows that I can go another 50 miles before empty and the motor cuts off and I’m out of fuel. It’s not the gauge. It’s not the computer. The problem is in the sending unit. The fuel pick up tube extends from the sending unit to the bottom-most point in the fuel tank. There is a screen at the bottom of the pickup tube to help keep contaminants out of the fuel system. For some reason this screen breaks off of the tube and goes off to hide somewhere in the tank. The pickup tube has thus been shortened and can no longer reach the bottom of the tank. The gauge and computer readings are correct; there is still fuel in the tank. The pickup tube just can’t reach it. Before I figured this out I took the truck in to the dealer for them to investigate why I kept running out of fuel. Not only did they not investigate it, they just told me that there wasn’t anything wrong with it other than a faulty gauge and I should just learn to live with it and not let it get so low. That was a preposterously stupid response. This problem has become an epidemic with 2008 diesels. Ford knows this, they HAVE to. But they haven’t done a thing to address it. We need some sort of class action against them. This has been a very dangerous problem for me, as I have run out of fuel in some precarious positions. It is unconscionable that Ford let’s this go unaddressed.