Nissan Repair: Temperature and Gas gauge not working, gas gauge, fuel gauge

Question
My 1992 Nissan Truck King cab has two problems:
- Temperature gauge not working so I do not know how it hot
- Indication gas gauge is always in a Empty even if I have filled gas.
Please tell me how fix them . Thank you

Answer
Hello Hung -

First of all check your fuses. If all are good:

1. Temp gauge - The temp sensor probably went bad. It is located near the water outlet on the intake manifold, or right on the outlet. Hex shaped with one or two wires coming out of it.

2. Fuel gauge - Probably a defective sending unit. This one is located in your fuel tank. Fuel must be 1/4 tank or less so you can remove the tank. Once the tank is removed, there is an access hole on top with the wires and fuel lines going into the tank. remove the outer ring by using a BRASS punch (no sparks!). From there you can access the sending unit and fuel pump. Might be a good time to replace the fuel pump while it is out.

Hope this helps -
aloha
calvin