Assuming it is a 86-93 model bseries I will for answering this.If the gauge does not register it is more than likely the fuel sending unit in the fuel tank is BAD.To correct this requires dropping the fuel tank and replacing the fuel sending unit.You can try and ground the power wire from the harness at the tank(very difficult to do for clearance purposes) and if the you ground the power wire and it makes the gauge move to the full position the fuel sending unit is defective.I would just buy a new part and drop the tank being the truck is probably over 15 to 20 yrs old and needs a new fuel sender.I seriously doubt the gauge is bad(in most cases the sending unit is worn out in the fuel tank).Ok
wire of the unit on top of gas tank or fuse blown
Because it's stuffed
fuel gauge not working
Mazda truck b3000 where is the fuel pump reset switch located
In the fuel tank.
In the fuel Tank
where is fuel gauge and how to replaced for a 1986 Mazda pick up B2000 please let me know thank you
where i look only year 1994 mazda b4000 truck -fuel sending that find hard time
Don't know about the fuse, but the most likely cause for your fuel gauge to quit working is a bad sender unit. You are going to have to drop the tank and replace the whole fuel pump assembly (you can't buy the sender by itself) Don't know about the fuse, but the most likely cause for your fuel gauge to quit working is a bad sender unit. You are going to have to drop the tank and replace the whole fuel pump assembly (you can't buy the sender by itself)
Check the fuel control relay behind the drivers side kick panel. Could be bad. If that is ok start at the fuel tank and check the wires and connectors to the front of the truck. Good Luck Jerry
Chevy's are known for this problem, i just recently had the same problem and what you need to do is replace the fuel sending unit. My original problem had to do with my fuel pump not working and i wasn't really worried about the gauge but we figured since we had the tank down we might as well swap the sending unit and my gauge starting working. Good luck
I need a diagram of the fuel tank on a 1994 Mazda B-2300 Truck