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COLEMAN UT400 Fuel indicator


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We just purchased the Coleman UT400, I put 5 gallons of fuel in the tank and the fuel indicator still reads "empty".  After looking around the fuel tank, I found a tube that is only connected at one end, maybe this is the issue?  I have been looking for a more comprehensive manual that may show how this tube should be connected, no luck.  Looking for help on this issue/issues.  Thank you.

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Edited by Alex
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I had the same problem when I got mine. I tried taking the tank apart and even got a new float and sensor. No luck. Warranty service was poor and very frustrating. I traced the entire wiring of it. No luck. As a last ditch thing I pulled the plug in the harness under the front hatch lid and it looked fine, until I looked closer! One of the little tabs in the plug was bent over. It would not contact but it still allowed the plug to snap together. The easiest way to find the white plug is to trace back from the dash gauge. You can straighten the tab with some hemostats and then plug it all back together. With all I went through trying to figure this out and the hassles I went through trying to get warranty service it would just make my day if this was your problem and it could be remedied as easily as mine was ((once I found it, that is). I agree, the tube is likely just a vent tube as everything on the tank locks in place.

Edited by Rey Ximenes
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The fuel indicator can be misleading on how to read it. I have Axis 500. It has bar indicators with the ‘near empty’’ bar being Red and all others up to full being Yellow or Amber.  With a full tank all indicators are visible, including the red empty indicator. As fuel is consumed the indicators will disappear from right to left.  Don’t let the visible red indicator fool you. It doesn’t mean  that it’s about empty.

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  • 2 months later...
  • 5 months later...

We been using the 400 and the fuel indicator is not working, we also noticed that the speedometer is not working either.  Rey which plug, wire colors did you mess with, I think an entire plug is not working correctly.

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Are you getting all the other indicator lights on the dash? Is the fuel indicator still showing full as in your pic from January? If you're just missing speed/miles I believe the speed sensor is in the rear diff. Take a look at the plug that connects to that first.

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Hey New,

These things are a mess. I can't really describe what the plug looks like except it is white in mine. I followed the wires from the dash/fuel gauge unit to the first plug and this is it. Like I said, when I looked at it , it looked fine, but when I looked closer, there was a bent over tab inside. It was hard to see without a light. I reached inside the plug with some hemostats and was able to bend the tab back and then snap the plug back together. I wouldn't doubt if this was the problem with your speedo too. Tabs like this get bent when workers are rushed to get things done quickly. If all else fails, just start checking any plug you can get to. It is probably quicker and cheaper to do this than trying to contact warranty service. That was a nightmare! In all fairness though, once I got this little beast operating correctly, it has done very well.

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On My '21 Axis 500. The fill plug on the rear differential is the speedo sensor. The wire connector is on the left side of the differential and the fill plug is on the right. I had to take the wire connector apart before removing the plug. If you don't take connector apart. The wires just twist around each other at sensor/fill plug and will end up mangled.

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