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I think you guys are probably right. I just remembered that the first time I filled it up after purchase (also the time I fueled it while running), it was around a quarter of a tank or less. From what I understand, letting it go below that level can cause problems with the sender.
Assuming I can't just clean the sender, can I purchase the sender separate or do I have to buy the pump/sender together? Looking at Ford's online part store, I only see the sender unit by itself for a gas model.....
Yeah we tested the resistance and all was as it should be at the sender. I disconnected the batteries and turned on the headlights for an hour after we buttoned it back up and key to run cycled all the gauges including the fuel. Started it up and it went to above E and the low fuel light went away.....for about 1 minute.....then down below E again. I think I read that you can replace just the fuel gauge on an 04 instead of the entire cluster?
The cluster in you truck has some smarts (CPU) in it and
just replacing the single gauge most likely won't fix it. If
you can get the cluster to go into the self test mode and the
gauge does the full swing then it is most likely not the problem,
There is one other option. Where in WA are you? My truck is
down right now but I still have my IDS and the tools that I used
to fix my last one. I am thinking that if your getting readings
from the sender then you might have a wiring problem between
the two locations. I also have tools for tracking wires and searching
for breaks in the wire.
I have not given them a call. I appreciate the offer to help me track down the bad wiring but I live over on the dry side in Spokane.
Do you think that the fuel gauge has any relation to the overhead trip computer? Mine wasn't working when I bought the truck so I had a buddy try and fix it for me. Well, he didn't fix it and the board looks like a 2 year old got a hold of a soldering iron. Anyway, could a short or open circuit on the board make the fuel gauge do what it's doing?
Probably coincidence but it seemed to happen around the same time.
Does your truck have the message center in the dash? If so, you can put it into a self-test mode that will give you a direct readout of what the gauge is seeing from the sender.
Does your truck have the message center in the dash? If so, you can put it into a self-test mode that will give you a direct readout of what the gauge is seeing from the sender.
Could the fuel float have a hole? and thus always SINK? Since it's ohm-ing out correctly maybe it just won't float?
ie: you ran the tank down low, the fuel sender got "stuck" at the bottom of the tank. You then filled it up and the fuel covered the float.
now that you removed the float - maybe it'll just work fine once it's re-installed.. (as long as it doesn't get stuck near the bottom again)
I am pretty sure you can query the fuel level (i.e.: scangauge2 Xcode) this should help you determine whether the PCM is getting anything in terms of fuel level from the tank.. Then you can decide whether the issue is getting a value FROM the sender - OR a display issue in the cluster (and overhead)..
I also believe you can put the DASH into "diagnostic mode" by holding DOWN the trip reset button AND then turning the key "ON" (NOT to start).
Actually, maybe you DO start it - I can't recall that part.. (try it one way or the other..)
Then release the trip button. IIRC, you then press/release the trip button to cycle through the various sensor values by looking at the odometer digital readout.
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