fuel level sender
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fuel level sender
all of the wireing going back to the sender, was melted so I cut it out and replaced it. With the ground, not hooked up, the gauge reads full. with it hooked up it reads empty. With the truck turned of the gauge sender reads about 1/8. I am assumeing the sender is bad or the float fell of one of the two. Has any one cut a hole in the floor to remove the sender? If so do they have the messurements to do so? What would you recemend to use to cut it, a sawzall, or a hole saw? Thanks in advance.
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From: GOING BACK TO TEXAS!!!
dropping the tank is no fun. A gallon of gas weighs about 6.25 pounds at room temp. A half full tank has about 100 pounds of fuel plus about 20 pounds of metal and plastic. If you have to drop it, do what you can to get the fuel level as low as possible. I dropped the tank on a Bronco II about five years ago that had ten gallons of gas in it and that sucked.
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The tank is a PIA, I tried to drop it today, to make redoing the wireing easier. I got the front bolts out, the rears I cant get a wrench in there to take them out. So Im hopeing someone out there has some advice, on where and how to cut the floor.
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fuel level sender
Dave ,double check your wiring,go back to where you spliced the new wiring in,find the wire that runs back to the sending unit(find the color code in a Chilton or Haynes manual)and separate from your splice and then ground it and see what it reads.If I remember correctly it should go to full when it's grounded(having a senior moment!)and empty ungrounded.If you have the wiring disconnected completely and it is acting this way then the float assembly has nothing to do with the reading. Make sure that every thing is right from the gauge to the tank before pulling the tank apart and replacing the float to find that when you get it back together and you still have the same problem. Good Luck!
Kenny
Lost your job yet?
Keep buying foreign.
Kenny
Lost your job yet?
Keep buying foreign.
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if there was no power, going to the sender, do you think It would cause this? The high pressure pump was rewired on a seprate power wire, and I have only been runing on that pump form the time i bought it.
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From what I have been reading, It sounds like the sender should have a resistance of about 150 ohms or so when full, and about 15 ohms when empty. If this is true then when the ground wire is unhooked there should be 150 ohms resistance, and when its hooked up there 15 ohms resistance, so this leads back to thinking the sender is bad, or the float fell off (which seems to be a commen problem.)
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fuel level sender
Dave,lets take these one at a time,post #5if there was no power going to the gauge it would not read at all,grounded or ungrounded.
#6 if your resistance readings are correct you could very well be correct in that the sending unit has a problem . Over the years I have found them with holes in the float,float loose from the swing arm ,resistance windings broken and swing arm broken.the reason that I stated to double check your wiring was to make sure where your problem was .I have seen people tear into gas tanks ,cause they"knew" the float/sending unit was bad,only to get it back together and still had the same problem.I think it is rare for the gauge to go bad but the wiring is another story,most of the problems I have seen and helped to fix were broken wires. Good Luck!
Kenny
Lost your job yet?
Keep buying foreign.
#6 if your resistance readings are correct you could very well be correct in that the sending unit has a problem . Over the years I have found them with holes in the float,float loose from the swing arm ,resistance windings broken and swing arm broken.the reason that I stated to double check your wiring was to make sure where your problem was .I have seen people tear into gas tanks ,cause they"knew" the float/sending unit was bad,only to get it back together and still had the same problem.I think it is rare for the gauge to go bad but the wiring is another story,most of the problems I have seen and helped to fix were broken wires. Good Luck!
Kenny
Lost your job yet?
Keep buying foreign.
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Joined: Nov 2004
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From: Birmingham AL
Here is a link to what I will do to mine. The plate was cut out of another bronco. I made all the measurements but I haven't gotten around to cutting it yet.
1988 Ford Bronco Fuel pump access plate pictures, videos, and sounds | SuperMotors.net
1988 Ford Bronco Fuel pump access plate pictures, videos, and sounds | SuperMotors.net
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