I had the sending unit replaced in my tank Friday. The guage was malfuctioning. Before it would show empy after driving about 100 miles. After the new sending unit was installed it showed I had just under half a tank which jives with what the mechanic observed in the tank when he had it open. So I went to fill it up and the needle pegged out above full. The question I have is when I turn the truck off the needle does'nt budge, and when I drive it does'nt budge. However, I have only drove about 20 miles. When or should I see some movement? Is this normal for these trucks?
Thanks.

 

That is a big tank. You should see under half in 240 miles. BUT that last quarter tank on my truck is very big. I drove 185 miles on the first half and 185 miles on the next quarter of a tank.

 

It should go to empty when its off, mine does.

 

I don't know how many gallons mine is but right now I am sitting at 188 miles on the tank and I am down only a quarter tank.

 

When I'm just below a 1/4 tank I have roughly 10 gal. of fuel left. unclemarc

 

I never get below a quarter, but once if my light comes on, i got 27 miles. Dont ask how i know that

 

After reading your last post, i when Hhhmmm i got to go look
well in back and my gas guage should a 1/2 take before i turned on the key and stayed at a half of a tank when i turn on the key....temp guage fell to cold when i turned on the key tho

Keven16370, on the hiway my tuck will show over full for about 70 miles before it is below full(replace my sending unit about a1 1/2 years ago.....float was floating with out the sending unit wire attached

 

hum ok im going look at mine again

 

Thats funny!!!!!

 

hello, can you tell me how much you paid to have a sending unit put in? I have the same problem you have with my '99 dodge. Just want to get an idea so I don't get ripped off.

 

I did it my self.......probably took a Hour or two.........before you do it run the tank down as fare as you safely can!!!!

the tank conectors can be a real pain to get to release.....evan more so if you like to play in the dirt and mud!!!!!!!!!!