1998 voyager fuel gauge always reads full ??? Unpluged wire plug from tanks and nothing, tired disconecting the batt to reset comp worked for about 20 seconds then wen't back to full tank is currently almost empty
Pulled sending unit out of tank and cleaned, works but works back wards if low on fuel gauge read full , if full gauge reads on E??Pulled sending unit out of tank and cleaned, works but works back wards if low on fuel gauge read full , if full gauge reads on E??
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there is two things : fuel gauge and dash fuel gauge. The fuel gauge in tank rated to 0 to 90ohms.disconnect wire at the tank take a variable resistor connect it to wire .read the dash gauge if it move as you move the resistor. if ok fuel tank gauge is at fault
I think by what you have decribed is the gauge in the dash itself is bad. When the wire is unpluged the gauge should read empty. I assume that this is an older Chevy with a mechanical fuel pump being there is only one wire. You can also check to see if the sending unit in the tank is operating properly but reading the ohmn's thru the wire.
It sounds like the sending unit has a dead spot on it causing it to read inaccurately. The tank would have to be dropped and the sending unit replaced. Check out this page and illustration to better understand what's going on. "How a fuel gauge works"
Fuel gauge measures resistance of potentiometer coil in tank.
If you pull wire at tank unit, and short it, it should read full.
With wire off completely, should read totally empty.
If not, gauge bad.
If ok, then tank unit bad.
hi start at the fuel tank see if the wires are connected if so put the fuel gauges sender wire to ground the gauge should go to full if so change the sender unit if nothing moves see if the wires have come off the gauge yates210456
Pulled sending unit out of tank and cleaned, works but works back wards if low on fuel gauge read full , if full gauge reads on E??
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