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Webley1991

Well-Known Member

• Nov 28, 2014

• #1

Am I correct that the fuel tank sender is a float-operated variable resistor?

If this is the case, what is the value range so that I can test it before I re-fit it?

From what I have read, they are also different for diesel or petrol? Is this correct?

Thanks for any info.

 

joe27979

Well-Known Member

• Nov 28, 2014

• #2

from what I remember it's 240 ohm arm hanging down (empty) and about 30 ohm with arm up (full) I usually ground out the sender wire (0 ohm) to check gauge is fully working too

 

Blackburn

Well-Known Member

• Nov 28, 2014

• #3

Diesel has an extra set of contacts to energise low fuel light same resistance for level.
Very hard to obtain a diesel one with the extra contacts.

 

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Webley1991

Well-Known Member

• Nov 28, 2014

• #4

Thanks for the replies.

The vehicle did have a low fuel light on it. I will have to have a closer look at the one on the old tank.

The one fitted to the newer tank I have has one extra contact in the middle of the top plate.

 

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Webley1991

Well-Known Member

• Nov 28, 2014

• #5

I had a look earlier and the one on the old tank only has two contacts.

While we're at it, does anyone knoe the resistance / temperature range for the temp sender? It seems like it would be an idea to test it before fitting.