Pathfinder Long Range Tank

Graham H,

It is an electronic sender unit, it has been replaced twice, and is still inaccurate, I have had the instrument cluster replaced as well, and still it is inaccurate, Nissan now tell me it operates within specs, and there is nothing else they can or will do about it.

My main concern is the effect this will have on the aux tank.

I agree I want it to be accurate nearer empty than full.

When I first bough the car and it showed empty, the most I could put in the tank was 59 ltrs, before I realized there was a problem, even today if I fill up when the empty light comes on, it will only take 59 - 60 ltrs.

Barry H

A float does not ride on the top of the fluid. There will always be some distance between the top of the fluid and the bottom of the float. The bottom of the float will hit the bottom of the tank wit a considerable quantity of fluid still in the tank.

With this in mind why would you think the gauge would read accurately near empty.

PeterD

As I understand it fuel level gauges are calibrated by electrical means and can be adjusted so that the gauge reads correctly.

Usually this can be altered by bending the float arm to alter the electrical current going to the dashboard.

My Patrol one did this and was able to be altered by that simple means.
As I couldnt bend it to get it correct at both full and empty I just had it read more accurately at the empty end.

Was working on the theory that you dont need to know how full it is just how close you are to running out

As it was a 145 litre tank it still had a bit in it when reading empty, about 15 litres if I remember correctly and as I said most are adjusted to give you a safety reserve anyway