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| Can't get FUEL gauge working https://www.ausmini.com/forums/viewtopic.php?f=2&t=71730 |
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| Author: | brockytt [ Fri Jul 08, 2011 2:26 pm ] |
| Post subject: | Can't get FUEL gauge working |
Hey guys... would appreicate any help on this one. I've got a 78 Panelvan. Just completing restoration and looking to rego soon. I can't get the fuel gauge working. It's worth noting that the temp gauge and instrument lighting seems to be working fine. What I've already done: - have bought and installed a new copper circuit board for the rear of the cluster from minispares - Have tried 2 different voltage convetors (neither were new though) - Have tried earthing out the 1 wire that some from the FUel sender... this still didnt make the gauge work - Have tried swapping the fuel guage to another old one i had lying around DOes the instrument cluster need to be earthed? I've just pluged in the speedo cable and larger electrical connector. Any ideas would be great. |
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| Author: | GT mowog [ Fri Jul 08, 2011 3:24 pm ] |
| Post subject: | |
If you reach up under the front scuttle panel, just above the wiper motor, you'll find an electrical connector. It's white in colour and square in shape, about 16 mm square in fact, has about 8 wires / connections on it. Check the condition of the connections here. Seperate that, on the side that runs toward the middle of the car, find the green wire with the black trace. Earth it there and see if the gauge reads FULL. If it does, might be a break in the wire between here and the sender. If it doesn't, take the instrument cluster off again, but leave the multi pin plug in. Find the same wire and again run an earth wire to it. Leave it there for a moment and disconnect it, then quickly flip it over and see if it's FULL or on it's way back from there. DON'T try to leave earthed and turn the instruments over as you'll likely short something that shouldn't be. If it still doesn't work, check you've got voltage (won't be 12 volts, but some volts) on the gauge screw terminal. If you have, the the gauge is faulty. If not, there is still a fault on the back of the instruments. There is an Earth in the loom to earth the Instruments (or there should be one there, it's a Black wire), however this has SFA to do with the gauge, just the panel lamps. |
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| Author: | brockytt [ Thu Jul 14, 2011 10:37 pm ] |
| Post subject: | |
Thanks heaps this is REALLY helpful!! I'll have time over the weekend to do the checks you suggested.. hopefully i'll be able to sort it out |
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| Author: | Bubbacluby [ Thu Jul 14, 2011 10:41 pm ] |
| Post subject: | |
Have you checked the fuel sender unit? Its possible the float inside has filled with petrol, or that its just broken. Your guage and wires might be fine but the sender unit (the bit that goes into the tank) is broken |
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