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F250 Black Cloud Edition
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690 Posts
Discussion Starter #1
Ok, i did the old switching of the color bulbs in the cluster, was gonna take the panel off to get the green of the backside of the gauges. So i removed the needles, all were at 0. Gently removed them, seen it was all glued together, so i x ed that idea. Gently put my needles back on. Put the cluter back in the truck, and WALLA. There all off. Not really a big problem there. Got it figured out, since my truck was cold. Turn the power on to the cluster, and set them all to zero again. Thats all fine and dandy. But im not sure where my fuel was. So my dumb question for the night is. Does the low fuel lite get triggered by the gauge or the sending unit? Just precaution. But i figured i could just go fill it back up and move the needle. But i would like to know what triggers the low fuel lite.
 

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F250 Black Cloud Edition
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690 Posts
Discussion Starter #2
:eek:
 

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130 Posts
The light is triggered by the computer (GEM I do believe) when the fuel level gets to a certain point.

Your gauge reads what the computer tells it too.
 

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F250 Black Cloud Edition
Joined
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690 Posts
Discussion Starter #4
Im not to sure about that answer. The gauge reads what the sending unit tells it. You can pull the sending unit out and move it up and down and the gauge will follow. From what ive gathered, its resistance of the Sender that moves the gauge. The ohms change as the arm moves, which in return moves the gauge. Im just unsure about the light. What triggers it, is it the possition of the sending unit, or is it the position of the gauge? Or on the other hand, what would be a good way to calibrate the gauge?
 
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