gas gauge
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Elder User
Joined: Dec 2006
Posts: 872
Likes: 0
From: South Carolina
gas gauge
hey i have a 1986 5.0 F-150 EfI my gas gauge doesnt work and trying to keep up with how many miles i go with the stress goin on in the world today is a hassle, so can anyone tell me what i can do to fix it?
any help would be appreciated!
Plums
any help would be appreciated!
Plums
Posting Guru
Joined: Mar 2006
Posts: 1,526
Likes: 2
From: fargo, nd
if the guage is pegged high then you have it grounded out, if its pegged low either you have a bad connection or your sending unit went bad... what id do is drop the gas tank and check the wiring for the sending unit... try to trace the wiring back to the guage and look for breaks
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
Fuel gauge Senders on this year range of truck are prone for these types of failures.
A: Non working Fuel gauge, constantly reading below the "E" mark.
B: Iratic Fuel readings, reads normal until you reach below half a tank, then gauge goes dead.
C: Reads below the "E" mark on the gauge with plenty of fuel left in the tank.
D: Gauge actually reads higher as the fuel is burned.
All this can be due to a bad fuel gauge sender in the tank.
Also the floats tend to go bad as well and split open allowing them to fill up with gas. Usually causes symptom "A".
A: Non working Fuel gauge, constantly reading below the "E" mark.
B: Iratic Fuel readings, reads normal until you reach below half a tank, then gauge goes dead.
C: Reads below the "E" mark on the gauge with plenty of fuel left in the tank.
D: Gauge actually reads higher as the fuel is burned.
All this can be due to a bad fuel gauge sender in the tank.
Also the floats tend to go bad as well and split open allowing them to fill up with gas. Usually causes symptom "A".
Posting Guru
Joined: Nov 2004
Posts: 1,137
Likes: 2
From: Asheville, NC
Been there, done that. My gauge would read full for about 10 miles after a fill-up, and nose-dive to empty and stay there. Even my truck gets better tank mileage than that!!!
Bought a new tank sending unit from FORD for this old monster. Nice to have an accurate gauge now! I can almost hear the gas sucking out of the tank as I ride along watching the gauge drop slowly to empty!
Bought a new tank sending unit from FORD for this old monster. Nice to have an accurate gauge now! I can almost hear the gas sucking out of the tank as I ride along watching the gauge drop slowly to empty!
Thread Starter
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Elder User
Joined: Dec 2006
Posts: 872
Likes: 0
From: South Carolina
thanks
hey thanks for the responses but it seems that it will have to wait cause ol' blue seems to not want to run. thought it was the carb, rebuilt it now thinkin its a gas problem AND the truck sounds as if its runnin on 4 cylinders at an idle but sounds stong when you rev it up, but idk oh well
