Thread: fuel gauge D2

Hi Geoff,
It may be that your sender unit has detached itself from the pump and is floating around attached only by it's 2 wires. The unit slides up in it's location and clips in place. I have had this problem of random readings for 6 months thinking it was an electrical problem that I was unable to trace. Finally removing the pump to replace the sender unit I found the problem and just relocated it and clicked it into place, problem solved.
Nick

X2 detached sender unit.

I had this exact problem with the same symptoms.

Originally Posted by Geoff

my question is... does the fuel sender wiring go through the bulkhead to the BCU and if so, what colour wire is it?





Thanks - Geoff

Hi, to answer your question: Yes it goes through the bulkhead but not to the BCU, from tank it goes to C0378(that grey roundish 14 pin plug near the fusebox) and from there it goes to a plug under the steering wheel(C0047) and up to the instrument pack(no connection with BCU), the wires from sender are pink/black and green/black

thanks guys, I will check the sender. how do you get it out from the top of the tank?

Hi Geoff,


This link is very helpful TD5 Disco Fuel pump/sender unit - Land Rover Technical Archive - LR4x4 - The Land Rover Forum with pictures. I now avoid high delivery fuel bowsers.


Good luck
Nick

Originally Posted by Pippin

Hi Geoff,


This link is very helpful TD5 Disco Fuel pump/sender unit - Land Rover Technical Archive - LR4x4 - The Land Rover Forum with pictures. I now avoid high delivery fuel bowsers.


Good luck
Nick

awesome, thanks

would this be a good time for the lad to check on chafing fuel lines??

Yes, definitely a good time to check for chaffing, but be very careful not to contaminate the fuel connections to the pump. There are some good recent threads on this chaffing issue. However I must admit to not having checked mine, but at 410K I presume there is not a weld issue down there, but I will get under there and check it out when I have time, it makes sense.
Nick