Gas gauge reading full

[nickespi]

So when I bought my boat a couple months ago I thought they gave me a full tank since the gauge was reading full. I found out the hard way that it reads full even when empty. Yeah, we ran out of gas in the middle of a session. Thank goodness a friends dad was near on the houseboat and he brought us a can to get back up to the dock. Any guess at why the gauge is reading full when empty? It will occasionaly drop to half, but then pop right back up to full???

[BrianM]

Probably a bad sending unit. Just replaced mine. DIM has great replacement units for about $50.

[jdhart73]

I have the same issue on my 2006 X2 (MCX). Fuel gauge is off about 1/3 tank i.e shows about 1/3 of a tank when you run out of gas in the middle of the lake. Should I adjust the unit or just buy a new one?