Series 3 fuel sender unit problem

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Joeeede

New Member
Posts
9
Location
Dorset
Hello , I am looking for some help / advice ? I have a series 3 109 military with twin fuel tanks under seats , I have recently restored it and one of my last jobs was to replace sender units . I ordered 2 (flat metal top with one spade connector on - same as the ones I removed) but I just can not get it to work ? ,
I have serviced all switches and it is all working good , the problem is the gauge just goes to full all the time regardless of float position , I have disconnected all wires , it reads empty , earth the wire and it goes to full , so all good ? , but when I connect to sender it goes straight to full ? on both sides ?? , I think I have tried everything , but any advice would be appreciated ? thank you Joe
 
Hello , I am looking for some help / advice ? I have a series 3 109 military with twin fuel tanks under seats , I have recently restored it and one of my last jobs was to replace sender units . I ordered 2 (flat metal top with one spade connector on - same as the ones I removed) but I just can not get it to work ? ,
I have serviced all switches and it is all working good , the problem is the gauge just goes to full all the time regardless of float position , I have disconnected all wires , it reads empty , earth the wire and it goes to full , so all good ? , but when I connect to sender it goes straight to full ? on both sides ?? , I think I have tried everything , but any advice would be appreciated ? thank you Joe
You mustn't be getting a clean earth when the sender is fitted in to the tank. No earth would simulate a high resistance, simulating the float being in it's upper position, so giving a FSD on your gauge. ie looking full
However, you're just in the General part of the forum here.
Try posting in the Series section HERE https://www.landyzone.co.uk/forum/series-land-rovers.6/ to put your question in front of the members who will really know.
By the way, welcome to the forum!
It's forum etiquette to put your first post in the Introduce Yourself forum HERE https://www.landyzone.co.uk/forum/introduce-yourself.20/ that way you have a better chance of getting a reply.
 
Hello, thank you I will try posting it there (first time I have used a forum?) I agree with the bad earth , but I have tried that , I have contacted a wire straight from a bolt on sender unit to a earth and checked it for continuity , still the same ? thank you Joe
 
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