Check the ground to the tank. That may help
bad sending unit in tank, or short in wireing.
The fuel gauge on a 1985 Chevy Silverado will read full all the time if the sending unit is defective or the wire has come loose. When the tank is full, the sending unit normally shuts off which cause the gauge to read full.
Well, usually there are several possible problems that can do this. Some of the more common problems that people experience with their fuel gauge is that it reads empty at all times, another is that it reads constantly full, but the most common problem is when the gauge will read differently at different times, fill the tank and it will read empty, be about a quarter of a tank down and it will read full, that sort of thing. In the more common cases, the problem is with the fuel level sending unit, I do not know much as to how to fix it, but I have seen several websites that give advice on this problem.
It means the filter needs replacement
probably the sending unit. unfourtunatly the sending unit and fuel pump are made in one peice, so expect it to be expensive
It would be better to write: My gas gauge reads empty. Note that 'gauge' is singular, so it needs the singular verb, reads. If you had several cars all with gas gauges that read empty, then the verb would be read.
You have a grounded sending unit. If the gauge reads full all of the time then there is a bare wire or the sending unit itself has gone bad and grounded out. I also had the same problem after i swapped my fuel pump with one out of an older car that had been sitting for a couple of years. The float was either stuck or not working i just put the old one back in after i found out that it wasnt the problem with my car.
The way to test the gauge is to unhook the wires to the sender and the gauge should read empty. Now, ground the sensor wire and the gauge should go all the way past the full level. If this happens your wiring and gauge are fine.
A potential bad gauge or sender unit in the tank would cause it to read full all the time.
A Toyota Camry can hold 6.7 quarts of coolant when it is bone dry. You should add the needed liquid so that it reads at full at all times.
bad ground or float stuck 2 possibilities i can think of