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Old 09-30-2002, 05:01   #1 (permalink)
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frown dicky fuel gauge

hello to all,my ef falcon fuel gauge seems to stay on full or empty but nothing else.I've had the sender out of the tank and with the float lifted to highest point I measured 1.6 ohms across the pins ,with the float dropped lowest I read 0.0 ohms across pins.when I reinstalled the float and sender ,the float seemed ok but the resistance across rhe pins was 40 -45 ohms with about 10 litres in the tank.Is this normal?does the sender resistance increase when immersed in petrol or is there a problem here??
any feedback would be appreciated
thanks maddymoo
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Old 09-30-2002, 20:07   #2 (permalink)
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If the sender is like the EA's it will increase resistance the more petrol you have.

You may just have dirty connector terminals on your pump and wiring connectors, as it's very important they are clean and not corroded.

Fill your car up with petrol, and when you turn on the ignition, watch the fuel guage and see if it goes all the way to the top before dropping to the bottom showing empty. This is the guage overloading due to the resistance being so high from correded terminals. You can clean the terminals in metho and that should fix it for a short while, but the problem will probably come back until you replace the wiring connectors.
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Old 10-01-2002, 15:18   #3 (permalink)
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Have a read of this one:
www.intendedacceleration.com/html/tip_14.html
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Old 10-02-2002, 06:14   #4 (permalink)
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On the matter of terminals I use a product called "KOPR-SHIELD' a conductive copper grease that improves conductivity and stops further corrosion.
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Old 10-02-2002, 06:31   #5 (permalink)
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This stuff http://www.eastwoodcompany.com/aspfi...ll=application
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Old 10-02-2002, 13:46   #6 (permalink)
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Thanks Blue,

that liquid electrical tape looks good too.
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Old 10-08-2002, 04:40   #7 (permalink)
 
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Well I know my car also has a dicky gauge. When I fill up the car she seems to go on and on. When I reaches half way it plunges and on the last quarter seems to go on and on. To get around this problem I just use a bit of logic. If im in heavy city traffic refill after 450-480 and after freeway driving in around 580-650. I got to get it fixed one of these days but.
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