Fuel gauge reads empty, 80 ohms from sending unit, but tank is actually full

[vtboy51]

Does this indicate my sending unit is bad??

 

[vtboy51]

Also, I grounded the gauge and it reads full so that is working.

 

[Viperwolf1]

Does this indicate my sending unit is bad??

Or your float has sunk. Maybe the float has detached from the arm. Either way it has to come out.

 

[broncoitis]

in Viper I Trust!

 

[Big Slim]

is the tank selector switch on the dash working or wired correctly?

 

[vtboy51]

is the tank selector switch on the dash working or wired correctly?

Single tank setup. Thanks for the suggestion though.

 

[Broncobowsher]

Float sank
Float fell off
Sender got jammed

Whatever it is, you will be pulling the sender out of the tank to find/fix it. Could be as simple as attaching the float back on the arm or unjamming the float arm. Or it could be a new sender is needed.