The fuel gauge on the dash of my 2018 Impact is showing empty and the tank is full. Was working when put away for winter with half tank of stabilized fuel. Added 10 gal and used boat then filled and used boat. I have an idea how to troubleshoot but wondered if others have seen this with their Lund’s and if there is an issue to check first. The light works on the gauge if that means anything.
it could be as simple as the gauge on the dash is stuck,one can only hope.
unhook the wire from the sending unit at the tank and ground it,if the gauge reads full the sending unit is bad.
if nothing changes,check to be sure you have voltage at the wire showing it is receiving power,no voltage the gauge is most likely bad or has a bad fuse if fused separately
The fuel sender can be hard to access on some of the Lund’s… if I remember right the Impacts are one of those. It won’t check the wiring from the sender to the gauge, but if you want to check the gauge like Iowa explained you may need to use a jumper wire from the sender stud(pink wire) on the gauge to the ground strip on your fuse block. Just another option if the sender isn’t readily accessible. This is assuming you have analog gauges and not Smartcraft.
Is the float on the sensory stuck? I’d smack the top of the fuel tank with an open hand.
Thanks for the replies.I thought it was strange that the guage worked fine when I put the boat away last winter and would not work now. Then it finally dawned on me to check all the wires at the battery. When I hooked up the battery in the shed where it was stored the light was bad and I thought at that time I should check later with good light but that went the way of many other good intentions. Found two wires I had missed tucked in behind the battery. One was the fuel gauge the other probably the bilge pump which I didn’t try to use yet. At least I have plenty of time to do dumb stuff like this since the river won’t be down any time soon.
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