Author Topic: funny fuel gauge  (Read 3182 times)


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funny fuel gauge
« on: July 31, 2014, 04:58:47 AM »
  Hey guys. I replaced my old gas gauge with a brand new one and have a problem. The car has half a tank of gas in it, but the gauge reads 3 notches below empty! It isn't even in the gauge register zone. The sender is a brand-new AC  NOS  piece and I know it's good. I know that sometimes if these gas gauges are dropped that the needle can be jostled out of position because only a tiny pin on the back of the needle holds the needle on. Would it be feasible to take the gauge back out, move the neeedle to half a tank, and expect it to read correctly from there? Or would power from the sender have to be going to the gauge when the needle is repositioned? Or is this even possible? I hate to think I just dropped $200 on a new gas gauge that isn't worth a hoot. Thanks!
HotRod'68  1968 SS350 coupe undergoing frame-off resto/rod. 386/350/4.11s
Butternut Yellow    black standard interior

L78 steve

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Re: funny fuel gauge
« Reply #1 on: November 03, 2014, 05:36:23 PM »
Gauge should read full with sender wire disconnected and empty with sender wire hooked to ground. If this is not so check power to gauge or suspect gauge itself.
69 Z/28 Dover White. SOLD
67 SS/RS Mt. Green 1W,2LGSR,3SL,4K,5BY,07C. SOLD
70 Nova L78 Blk. Cherry,Sandalwood,M21,02B


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Re: funny fuel gauge
« Reply #2 on: November 10, 2014, 03:44:54 AM »
Good ground?
1967 RS/SS L-48
Van Nuys 01C


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Re: funny fuel gauge
« Reply #3 on: December 06, 2014, 05:58:57 PM »
FYI when my 69's sender wire was disconnected, the gauge read beyond E/F marks (with ground-wire connected).