dhg4dragon8
TYF Newbie
this does not seem like a sending unit problem
http://youtu.be/q5e15TxIHMU
http://youtu.be/q5e15TxIHMU
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they call it a humming bird gas gauge or w/e basically the oil that used to dampen it has leaked out. you remove the gauge and refill it with oil from an rc car like a traxxis truck and it fixes it. maybe search here or google for the fix i read it on fullsizechevy.com iirc
they are pulse width modulated so the thing sends a signal and it bounces..the oil dampens the pulse..