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MG MG Y Type - Fuel gauge difficulties

A friend in Adelaide, South Australia, has asked me if I can assist with a difficulty he has with the fuel gauge on his YA. When the ignition is switched on, the needle on the gauge immediately indicates "FULL" and that is where it stays.

Any suggestions on what he should look for to cure this problem would be appreciated. Alf Luckman
Alf Luckman

There must be a short circuit of some kind? The sender is best explained as a variable earth. If you earth the gauge it will read full.

I would try to make a fresh bypass wire and connect that to the sender (with the old wire off) and connect it to the gauge. If that works, the old wire is faulty. If that fails the sender must be stuck?
Willem van der Veer

Hi Alf

Have you looked at the Hints and Tips page ... and read the one on FUEL SENDER AND GAUGE TESTING?

Paul
Paul Barrow

Paul is right! It's even available in PDF:

http://www.mgcars.org.uk/mgccy/hints&tips/testing%20the%20ft%20unit.pdf
Willem van der Veer

Hopefully by now most stuff is available on either Hints and Tips, or Technical Advice ... but if it isnt, then you can always drop a line through to our technical section and ask them! We will document the question and answer on the site to increase the overall wealth of knowledge about these great cars.

happY and safe MotorinG

Paul
Paul Barrow

This thread was discussed between 10/11/2008 and 11/11/2008

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