The fuel guage on my 2006 4/4 has started to go from zero to full as soon as the ignition is turned on and stays there irrespective of the amount of fuel in the tank. The tank is a Mulfab extended range tank fitted before l bought the vehicle and l assume is fitted with a more sophisticated system thsn the old fashion float which could get stuck (or am I wrong).
Before l start undoing bits on the tank what checks should l take?
Thanks
Chris
