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post #2 of (permalink) Old 1st April 2007
Technical Supremo

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Wonky Fuel Gauge

Hi Bessy, Sounds like a voltage regulator problem. The fuel gauge and sender unit usually operate at around 10 volts and not 12v like most other circuits on the car. As the main circuits are subject to varying voltage a voltage regulator is used to smooth out any surges. I suggest you have the voltage going to the guage and the tank unit tested. If the voltage is OK I would suspect the tank unit is faulty.
P.S. Is the temperture guage working OK.
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