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Citroen xsara picasso faults

Fuel gauge was going up and down randomly yet I have 3/4 tank. it's had a replacement sender unit, now it's not registering any fuel in the tank at all saying 'low fuel' ...very confused ?

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Check wiring

Posted on Oct 18, 2013

Testimonial: "Totally bonkers, I've just given the car a good run out and the gauge has jumped from zero (no petrol) to 1/4 of a tank. I know for certain there is over 3/4 of tank of fuel, but I will get someone to check to wiring. Thanks Timothy :)"

  • Timothy Merchant
    Timothy Merchant Feb 08, 2015

    have somebody put a tester on the wiring in the sender unit they do make it texts for gauges and sender unit

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ZJLimited
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SOURCE: citroen xsara fuel gauge

Your most likely fault / problem, is with the fuel gauge sender unit being faulty - which is in the tank..

Its rare that gauges fail - but its worth checking... Access the fuel tank where the fuel pump fits in under the rear seats (i think) and remove the wire for the gauge, this is the smallest wire on the unit.

Earth that wire (ground), with the ignition on... make sure its a good earth - and the gauge should be seen to rise right to the top... if that happens - it proves the wiring and gauge are ok.. if not - then there is a problem with the wiring or gauge - most likely the latter which would need investigating.

Its usually the sender unit though as I say - 99.9 % of the time.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Posted on Nov 04, 2011

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Citroen xsara fuel gauge


Your most likely fault / problem, is with the fuel gauge sender unit being faulty - which is in the tank..

Its rare that gauges fail - but its worth checking... Access the fuel tank where the fuel pump fits in under the rear seats (i think) and remove the wire for the gauge, this is the smallest wire on the unit.

Earth that wire (ground), with the ignition on... make sure its a good earth - and the gauge should be seen to rise right to the top... if that happens - it proves the wiring and gauge are ok.. if not - then there is a problem with the wiring or gauge - most likely the latter which would need investigating.

Its usually the sender unit though as I say - 99.9 % of the time.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Nov 04, 2011 | Cars & Trucks

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