Fuel tank level sender

[Guest]

Does anyone know where the fuel tank level sender is? (its not under the boot floor) I have 1988 K series the fuel gage reads full when its half empty?

[Richard Price]

1988 K series 🤔

The level sender is usually accessed from the top of the tank, pretty much towards the centre of the car, underneath the honeycomb tank protector/boot floor.

 

 

[Guest]

My boot floor is sealed with pop rivets & mastic, I am thinking of cutting a hole in the centre of the boot floor about 150mm sq & making this a access panel anybody with a better idea it would be appreciated.

[Mark Durrant]

If you plan to cut a hole in the boot floor then you will need to remove it first. Have you tested the gauge?

 

Edited by - Mark Durrant on 18 Feb 2014 18:16:24

[Stationary M25 Traveller]

See the first post

 

Sounds like sender wire maybe trapped or chafing between floor and tank, as gauge goes full scale when wire grounded.

[Stationary M25 Traveller]

I would remove the rivets and cut the mastic and lift the floor. Worth checking the state of the gasket under the sender plate as they break up with todays fuels. Also all four 8mm bore flexible fuel hoses.

[Guest]

Thanks for all the advice, I am going remove the rivets and cut the mastic and lift the floor at the w/end I let you know how I get on once again Thanks.

[CharlesElliott]

One tip - cut the mastic/remove the rivets. If it still won't come up (which it probably won't), use a long bar vertically underneath the car pressing on the boot floor - jack the car up and then lower it onto the bar - gently! This will provide upward pressure and allow you to cut away the remaining mastic.

[Englishmaninwales]

Deleted - misunderstood!

 

Edited by - Englishmaninwales on 19 Feb 2014 21:57:38

[Guest]

I have cut a section in the boot floor just behind the fuel sender, to make removing the fuel sender easier, I took out the sender and checked all the wires & connectors its still rearing full tank I tried a multmetre across the fuel sender it reads 29V, I lost as to what to do, how do you check if a fuel sender is working the gage seems ok?. Thanks

[CharlesElliott]

The sender itself is a resistor - so you want to measure the resistance across it rather than voltage. When the gauge reads 'full' it implies that there is a short somewhere - what often happens is that the wires get cut by the boot floor and short against it. So you really need to lift the boot floor and see whether it still reads full; if not (and that would be my bet), the wire has shorted against the floor.