fuel guage works sometimes

71highboy · Post by **71highboy** » Thu Jan 27, 2011 9:53 am

hey i need some help with this.i have a new sending unit and sometimes my fuel guage works and sometimes it dont.any thoughts .thank you in advance.

basketcase0302 · Post by **basketcase0302** » Thu Jan 27, 2011 10:17 am

Check this out if might help:
http://www.fordification.com/tech/fuel- ... -units.htm
Mine was acting up a month or so ago, it was the float. Price for repair...$3.00 float! Priceless!

71highboy · Post by **71highboy** » Thu Jan 27, 2011 11:11 am

it has a new sending unit and float.

fordman · Post by **fordman** » Thu Jan 27, 2011 11:16 am

probably a loose connection in the wiring.

towtruckerfour · Post by **towtruckerfour** » Thu Jan 27, 2011 2:19 pm

I'm with Fordman, ground connection maybe.

basketcase0302 · Post by **basketcase0302** » Thu Jan 27, 2011 6:31 pm

Does it have dual tanks with the dual sender switch? If so, I'd look at the wiring on the switch like Fordman and towtrucker suggested.
Are you getting voltage to the sending unit?
Maybe also trace the fuse for it, (mine was kinda' rusted-had to clean up the contacts with a small wire brush).

71highboy · Post by **71highboy** » Fri Jan 28, 2011 7:45 am

no its just stock tank behind the seat.i do get power to the sending unit.if i ground out the power wire the guage reads full

Fordman5 · Post by **Fordman5** » Fri Jan 28, 2011 8:25 am

Believe or not, mine does the same thing and when it does i wiggle the ign key a little one way or the other and it starts to work. Funniest thing.

fordman · Post by **fordman** » Fri Jan 28, 2011 12:42 pm

Fordman5 wrote:Believe or not, mine does the same thing and when it does i wiggle the ign key a little one way or the other and it starts to work. Funniest thing.

that switch is worn out.

basketcase0302 · Post by **basketcase0302** » Fri Jan 28, 2011 5:36 pm

71highboy on Fri Jan 28, 2011 7:45 am
no its just stock tank behind the seat.i do get power to the sending unit.if i ground out the power wire the guage reads full

I would ohm out (check the resistance) of the sending unit. I can't remember what the value (number) should be, but I believe it's in the above link to the "fuel tank tech".

71highboy · Post by **71highboy** » Sat Jan 29, 2011 8:21 am

it worked all day yesterday so i will see what happens today

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