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  #1  
Unread 4th October 2014, 06:21 AM
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Default Forester SG fuel gauge stopped working

Today the fuel gauge stopped working with the needle pointing at "E" despite almost having a full tank.
I pulled the trusty owners manual out of the glove box thinking it would be a blown fuse. To my surprise there is no fuse listed.
Any ideas ?
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Unread 4th October 2014, 07:38 AM
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in-tank measurement device (resistor) burned out? Cluster gauge? Either 1 still have to pull them out to check.
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Unread 4th October 2014, 09:37 AM
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All the cluster gauges and lights working? I've owned a couple of cars where the fuel gauge was on the same powered as something stupid light the cabin lights
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Unread 5th October 2014, 08:06 AM
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Gidday HC

As Id said, there are some strange connections in the PCB behind the instrument panel ...

In my '93 Impreza, the fuel gauge was never accurate until just before I traded it in. I swapped out the tacho, which had stopped working properly for another one I had. Suddenly the fuel gauge became as accurate as all get out! Go figure ... .
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Unread 5th October 2014, 09:19 AM
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I am completely stumped I have checked the fuses all okay. I think I have checked everything else and can not find anything else that is not working.
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Unread 5th October 2014, 10:13 AM
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It'll be the fuel sender.. Subaru gauges are fairly reliable..

It's not too bad of a job to pull out but if you don't have the equipment to test the unit or the circuit then I'd recommend finding an auto electrician...(myself haha)

You need two things... a multimeter(to check the resistance in the sender) and a globe test light(min 10watt, not LED). The test light you earth out and touch the sender wire, doing this the gauge will slowly rise to full(the fuel light may be on or off, do not be concerned by this). When testing the circuit and the gauge with the test light make sure you unplug the fuel pump/sender unit.

If that is working then you'll need a new sender(Can check the resistance with a multimeter to confirm). If the test light trick doesn't work then you'll need to try a new cluster or have yours tested and repaired.
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Unread 5th October 2014, 08:53 PM
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Paul,

Not sure about the Foresters, but the sender on the L-Series is prone to inaccuracy after a long life. The Beigewagon fuel gauge has been dodgy for the last 4-5 years.

I couldn't be bother to change it out, I just reset the trip meter, and know roughly how far a tank will go. Also it is ok on the bottom half, just never reads full.

Beigewagon.
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