68 fuel gauge - Vintage Mustang Forums

 
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post #1 of 4 (permalink) Old 01-27-2009, 10:56 AM Thread Starter
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68 fuel gauge

Hi everyone,
On my 68, when the tank is full, the gauge only reads half full.

I have a new sending unit at the tank. I don't see any new fuel/ampere combo gauges available for purchase with the usual suppliers.

Any suggestions?

Thanks

Mike In Vegas
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post #2 of 4 (permalink) Old 01-27-2009, 11:12 AM
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remove the wire at the sending unit and ground it. if the guage reads full the sender is at fault. the arm on the float or the limiting tabs can be adjusted to correct the error.

aka carlite65
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post #3 of 4 (permalink) Old 01-27-2009, 11:46 AM Thread Starter
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Thanks!

I'll let you know how it goes.

MIV
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post #4 of 4 (permalink) Old 01-27-2009, 07:35 PM
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Don't leave it grounded very long!You can do some damage to those gauges by directly grounding that circuit. If I remember correctly, 22 ohms should put it @ full, and 72 ohms @ empty. I have had the gypo sending units read all over the place.My '69 reads backwards Find a buddy with an ohmeter and check the sending unit at both full and empty. Good luck.

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