75ZT Community

Hi, My 1999 Rover is over reading it's fuel level on the gauge and will show appx 1/4 tank despite actually being empty. I've checked the fuel levels via the dash which reported _ _ 0 2 8 7. Can anyone advise why there'd be no reading on the left hand side of the tank? Even with a faulty / stuck level sensor I would have expected some sort of reading. Many thanks in advance for any guidance / suggestions

While we wait for those more experienced to comment I did a Google search worded "Rover 75 fuel gauge not read left side of tank" where AI says:-

"A Rover 75 fuel gauge not reading the left side (or showing half-full/empty incorrectly) is usually caused by a faulty/stuck left-side fuel sender or a separated fuel filter. The left side contains the fuel filter and a secondary sensor, while the right holds the pump and main sensor. The unit often requires cleaning or replacement, or the filter housing may have separated."
The search result gives more detail.

In case of use and you have not seen it Youtube's Shoe String shows a youtube of the Rover 75 pump
https://www.youtube.com/watch?v=kMIasHR5RLA

Thanks Ed3 - Will have a look inside the tank to see if I can spot any issues

I don't understand the pumps and gauge but there is a diagram and discussion here:-
fact-or-fiction-and-fuel-tank-flow-diagrams-t7843.html

Just to follow up (may be of use to someone if you've also only got 1 side fuel reading through the dash diagnostic menu). On examining the fuel pump plug I found that 2 of the level sensors were linked together. Whilst they give separate resistance readings with the connector unplugged, when plugged in 2 of the pins are linked together - the circuit therefore:- comes in to one side of level sensor one, through the float, out to level senor 2, through the 2nd float and then onto the instrument cluster.
I haven't yet resolved the issue but suspect if an electrical problem rather than fuel flow related. Next step will be to remove both units an check the resistances through the full range. Looking online I found that the level senders should show 5 ohms when empty and 195 ohms (pump side) / 165 ohms (filter side) when full.