Fuel gauge inaccurate

[dhanna6powerstroke]

Has anyone had a problem with the fuel gauge not reading accurate? I filled my truck up Sunday and had drove it 27 miles. I got in the truck this morning and it showed I only had 3/4 of a tank. I left drove about 12 miles, came back home and let it sit. Got ready to leave a little while ago and it shows full. I park the truck in the same spot every day. Anybody have any ideas? Also, what is the high idle mod I have been seeing people post? I thought you had to have a chip that would allow you to do that.

[DoubleDpsd]

use some of the chevron with techron additive and it might help free up the sending unit. As for the high idle mod, either use the search feature or search "high idle mod" on google.

[mschn99]

You either have a sending unit failing....or you have sulpher contamination in it...

go to chevron....get the "techron" fuel attitive.... run it for a couple tanks....see if that helps (thats actually a ford approved procedure)

if that doesnt work its probably gonna need a sending unit..

[mschn99]

Originally Posted by darsey715

use some of the chevron with techron additive and it might help free up the sending unit. As for the high idle mod, either use the search feature or search "high idle mod" on google.

wow...the young jedi has been studying!!!!

[DoubleDpsd]

no, I just ask you roughly 56 questions everytime we hang out.

[dhanna6powerstroke]

Appreciate the info. I will get some additive tomorrow and try it.

[robert smith]

In our E450 we have the opposite situation; the gauge indicates full for about 200 miles then starts to drop. One of the benefits of the 55 gallon ( really love the 800 mile range) tank is that it doesn't matter much. It still would be nice to have an accurate gauge; two dealers say the same thing "its normal".

[dayusex]

yeah robert my truck is the same, its a LB, and it will go about 160 miles before it even shows it moves, then at about 260 its at half, then somewhere around 480 its empty, wtf!

[robert smith]

dayusex, were you told that it is normal also?

[dayusex]

yeah dealership didnt do jack,wish there was a more reliable one