How to adjust/set fuel gauge needle??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1985GMC · 07-23-2013, 08:22 PM

Finally fixed my tank selector ground and got my fuel gauge to work. Then all of a sudden I ran out of fuel at 3/4 tank. I then realized my gauge still works and the ground is good but my tank is reading 3/4 of tank foward(too much) and before it was actually a 1/4 forward. How do it dial it up correctly?? Lol
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1985GMC · 07-24-2013, 11:33 AM

Bump
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chengny · 07-24-2013, 01:15 PM

You can't calibrate that gauge. Either the sender is mechanically sticking or the ground connection is not healthy (check the wire that goes from the top of the sender to the frame).

frog210 · 07-24-2013, 02:06 PM

I had a issue once too, my gauge wasn't working, when it was filled its was a little pass F, but wouldn't go lower then 3/4, ended up being the gauge
I think I might have a spare one if yours don't work
Is it a single or dual tank?
If its a dual check all the wires and grounds
Check the wires from the passenger side frame
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07-23-2013, 08:22 PM	#1
1985GMC Registered User Join Date: Nov 2012 Location: Morris, ct Posts: 54	How to adjust/set fuel gauge needle??? Finally fixed my tank selector ground and got my fuel gauge to work. Then all of a sudden I ran out of fuel at 3/4 tank. I then realized my gauge still works and the ground is good but my tank is reading 3/4 of tank foward(too much) and before it was actually a 1/4 forward. How do it dial it up correctly?? Lol Posted via Mobile Device

07-24-2013, 11:33 AM	#2
1985GMC Registered User Join Date: Nov 2012 Location: Morris, ct Posts: 54	Re: How to adjust/set fuel gauge needle??? Bump Posted via Mobile Device

07-24-2013, 01:15 PM	#3
chengny Registered User Join Date: May 2007 Location: New Hampshire Posts: 349	Re: How to adjust/set fuel gauge needle??? You can't calibrate that gauge. Either the sender is mechanically sticking or the ground connection is not healthy (check the wire that goes from the top of the sender to the frame).

07-24-2013, 02:06 PM	#4
frog210 Registered User Join Date: Mar 2012 Location: San Antonio, Tx Posts: 784	Re: How to adjust/set fuel gauge needle??? I had a issue once too, my gauge wasn't working, when it was filled its was a little pass F, but wouldn't go lower then 3/4, ended up being the gauge I think I might have a spare one if yours don't work Is it a single or dual tank? If its a dual check all the wires and grounds Check the wires from the passenger side frame Posted via Mobile Device __________________ San Antonio, TEXAS -Frog -I'm a valet and well I've driven BMWs, Mercedes, Porsche,Bentlys, fiats, Hondas, etc and well even do I like a few features, I love my shortbed, it dosent bore me out, just press on the gas and you'll remember why you love it.



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