I have a 2014 F150 5.0 6 speed automatic. I have two problems with the fuel system, which maybe connected. I’ve ran out of gas 3 times in the last 2 months and when I looked at miles to go they were 32, then 53, and the 82 miles till empty. The second problem is when I fuel my truck, it might take 20+ seconds to restart. If I leave it running it runs terrible during fueling and stinks, but as soon as I’m done I can shut it off and will start fine. Thanks for any help.
First, you should never keep the engine running while fueling. I'm pretty sure it's illegal in some places. Second by allowing the engine to run with the gas cap off, you are completely defeating the purpose of the EVAP system and probably causing the problems you describe.
Thanks for the reply. Both problems started before I tried leaving it running while fueling..
Then I would be looking at a new fuel filter at the very least. Running out of gas could have allowed sediment to partially clog the filter.
Thank you, I will.
Running the fuel pump dry will damage it. Fuel is used for lubrication. This is from page 193 of my 2019 F-150 owners manual:
Running out of fuel can cause damage not
covered by the vehicle Warranty.
If your vehicle runs out of fuel:
• Add a minimum of 1.3 gal (5 L) of fuel
to restart the engine.
• You may need to switch the ignition
from off to on several times after
refueling to allow the fuel system to
pump the fuel from the tank to the
engine. When restarting, cranking time
takes a few seconds longer than
normal.
Note: If your vehicle is on a steep slope,
more fuel may be required.
thank you