03-18-2020, 07:21 PM | #1 |
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Join Date: May 2010
Posts: 52
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36 feul gauge
I have a 36 feul gauge and new sender unit that is compatable with the gauge, The reading was very erradic for a time and finally quit. Found out the battery was hooked up neg. grnd. (6 volt) That has been corrected. The gauge still shows nothing.Is there a way to check the units with a meter? Sender has a separate ground that is working.
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03-19-2020, 01:00 AM | #2 |
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Location: Southern France
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Re: 36 feul gauge
I check them on the bench (much easier) with a 9V battery, 2 wires with alligator clips is all you need.
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03-19-2020, 01:01 AM | #3 |
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Re: 36 feul gauge
A simple check I use is to remove the power wire (-) from the tank unit, turn on the power and ground the wire to any metal piece on the car. The dash gauge arrow should go up. Don't let the arrow go past full. If the dash indicator doesn't move, the gauge is probably "cooked" and you will need another or a break in the wiring between the tank of dash unit is at fault. If it does move, the fuel tank assembly has a problem.
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03-19-2020, 01:53 AM | #4 |
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Re: 36 feul gauge
I have a big 50ohm resistor. That hooked up between ground and wire going to gauge should place the needle somewhere in the middle position. This way i can do the testing myself without running around being scared frying something.New sender as in aftermarket is a gamble...If you was close to me i could probably repair your old one and it would work better then the new...
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03-19-2020, 02:02 AM | #5 |
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Re: 36 feul gauge
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03-19-2020, 02:17 AM | #6 |
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Re: 36 feul gauge
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03-19-2020, 08:02 AM | #7 |
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Re: 36 feul gauge
Thanks everybody: The aftermarket sender is in a new tank in a 35 coupe, so donot have an old sender.
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03-19-2020, 09:19 AM | #8 |
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Location: Sweden
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Re: 36 feul gauge
Problem with some of the aftermarket new tanks is that they donīt even take an original ford sender...they have the later VDO bolt pattern...and probably a chinese VDO copy sender in there...not an easy start to get things right
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03-19-2020, 12:14 PM | #9 |
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Location: Lexington, NC
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Re: 36 feul gauge
I'm betting if it's not an original sending unit, being used with your original gauge, the problem is the tank unit. I've been down that road.
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