Question about 2004 Citroen Xsara 2.0

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Fuel gauge constantly shows as full

The fuel gauge constantly shows as full when I know it's not any ideas how to reset Everything else is working on the dash

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  • Citroen Master
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Fuel gauge sensor in the fuel tank is faulty.
replace that.

Posted on May 31, 2016

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How to chech erratic fuel gauge 90 van dura van.? Up and down behavior


faulty fuel gauge sender unit, inside your fuel tank,bolted to the top and hangs down inside,uses a float and arm to give signal to fuel gauge.

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The fuel gauge on my 01 caravan 2.4l reads full when running, and only reads 1/4 when off, any ideas what it could be?


Many cars do this to discourage gas theft. If the car fuel gauge only shows 1/4 full, a potential thief may not bother to steal 2 or 3 gallons of gas. This is very normal.

If the gauge is stuck on full and you are sure the tank isn't full, you have a sensor sending wrong information to the dash gauge. Most cars now have a single fuel pump and sending unit that can be replaced by a mechanic.

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What is wrong - The fuel gauge on my YP125R X-Max is constantly showing full


A constantly full fuel gauge is usually caused by a short circuit on the sensor wire. Check the wiring by isolating the wire as near as possible to the fuel gauge. Measure with an Ohm meter between the wire and earth, the reading should be more than 10 and less than about 200k. A short is indicated by a reading of around 0 Ohms, depending on the accuracy of your meter.
A second possibility is the sender unit in the fuel tank which could be faulty, and then finally, and only finally, the head gauge could be faulty.

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CTS 2009 Reset, recurring of fuel gauge and engine light issue ?


I would first try to do a hard reset which means disconnecting your battery for 24 hours, that solves more problems than you would imagine.
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Fuel gauge inaccurate


Change the fuel gage sender unit in tank.its faulty.

May 30, 2009 | 2001 Jaguar S-Type

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Fuel gauge not working


This problem is caused by only one thing, the fuel GAUGE sending unit inside the gas tank is defective, here is the part u need to fix this problem.
DELPHI Part # FG0148 {MODULAR FUEL PUMP ASSEMBLY W/FUEL GAUGE SENDER)
Actual OE Part PRICE: $272.00

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2002 honda crv fuel gauge moves really slow.


I had the same problem. My battery was going bad. When I replaced it with a new one, the fuel gauge worked fine.

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1989 Saab 900 low level fuel light


You don;t say whether the fuel gauge is reading accurately, or whether it's always on empty. If the gauge is always showing empty, it's most likely a problem with the sending unit in the fuel tank. Check the resistance across the two terminals of the sending unit.

On a C900, the fuel sender level unit is separate from the fuel pump and located on the right side top of the tank, accessible by removing the trunk floor lift up panel (the pump is located on the left side top of the tank.
Possible problems are: electrical line off or broken, float not working (it's fairly delicate); or gauge not working.

Test the resistance of the sending unit with the lines disconnected, the resistance should be 2.6 to 3.8 ohms full tank, 63.3 to 67.5 ohms empty tank; and test for voltage across the top of the sender unit, if no voltage, that's likely the problem!

If the gauge is otherwise reading accurately (showing 'full' for a full tank, etc) then the problem is likely a gauge malfunction and can be simply replaced.

Good luck!

Saabreur

Jul 10, 2008 | 1989 Saab 900 4 Door

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