by ipdialup on Fri, 02 Jun 2017 10:26 +0000
I have a similar problem, when the sender unit was taken out of the tank, by a garage, they said the bottom quarter of the potentiometer was dirty so assumed that's why gauge wasn't reading so cleaned it and put it all back together, they also said when they moved the sender by hand when out of the tank the gauge went from top to bottom, when placed in the tank it stops and 1/4 and doesn't go any lower until you run out of fuel.
I think perhaps the float is getting stuck on something in the tank, or as one of you suggested the tank has been deformed due to a blocked breather and the float get's stuck.
Think I have to get the tank off and this time have a look at it all while the mechanic has it in bits, thanks !