Sender unit-fuel gauge not getting power - D40 2014 v6 Diesel

[prka]

I've took down the tank and tested sender unit and it's working but when connected it's not getting power. Could it be the reason that the engine won't start?

 

[Old.Tony]

The fuel sender in the older models is a direct 12V-to-sender with the return voltage being displayed directly in the instrument cluster. I've haven't heard that they've changed it - but then stranger things have happened.

I still doubt they'd put a start-fault if there's no return from the fuel sender. Have you tried priming the fuel system in case there's a small leak allowing the fuel to return to the tank? That's a common problem.