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Old 02-24-2012, 12:44 PM   #1
TJBrown
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Dual Tank Fuel Level Sending units

I have dual tanks on my truck and noticed that one tank will show full and the other tank shows 7/8's full. Is this a common issue with one after market and one oem sender or is there another issue?
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Old 02-28-2012, 03:24 PM   #2
jhngardner367
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Re: Dual Tank Fuel Level Sending units

I've had the same problem,a couple of times.Some after-market senders have to be "tuned",before installation.This requires removing the sender,and GENTLY bending the float arm,until it just registers full,as the arm is 0.030" off the bottom stop-tab.The + sender wire should be connected,and a ground wire is connected, as a jumper,from the sender plate to vehicle ground.Make the bend 1" above the spot where the float arm touches the tab.UP= full/DOWN= empty.
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