73-87 Chevy Truck Fuel Gauge Not Working
One of the most common problems with 73-87 Chevy trucks is a malfunctioning fuel gauge. This issue can be frustrating for truck owners, as it makes it difficult to know how much fuel is left in the tank. In this article, we'll explore some of the reasons why your Chevy truck fuel gauge may not be working and discuss possible solutions.
1. Faulty Fuel Sending Unit
The fuel sending unit is responsible for sending the fuel level information to the fuel gauge. If the sending unit is faulty, the fuel gauge will not work properly. The sending unit is located in the fuel tank and can be accessed by removing the tank or through a service port located under the rear seat.
If the sending unit is faulty, it will need to be replaced. This can be a difficult and time-consuming task, as it involves removing the fuel tank. It is recommended that this task be performed by a professional mechanic.
2. Wiring Problems
If the fuel sending unit is working properly, the next thing to check is the wiring that connects the sending unit to the fuel gauge. Over time, the wiring can become corroded or damaged, leading to a loss of signal between the sending unit and the gauge.
Checking the wiring requires a basic understanding of electrical systems and the use of a multimeter to test the connections. If any damage or corrosion is found, the wiring will need to be repaired or replaced.
3. Faulty Fuel Gauge
If the fuel sending unit and wiring are both working properly, the problem may be with the fuel gauge itself. Over time, the gauge can become worn or damaged, leading to inaccurate readings or a complete loss of function.
If the gauge is faulty, it will need to be replaced. This can be a difficult task, as it requires disassembling the dashboard to access the gauge. It is recommended that this task be performed by a professional mechanic.
4. Incorrect Fuel Level
It is important to note that sometimes the fuel gauge may appear to be malfunctioning when, in fact, the fuel level is simply incorrect. This can happen if the truck is parked on an incline or if there is an issue with the fuel sending unit or wiring.
To determine if the fuel level is correct, it is recommended to fill up the tank and reset the trip odometer. Then, monitor the fuel level and mileage over time to determine if there is a problem with the fuel gauge or a more significant issue at play.
Conclusion
Overall, a malfunctioning fuel gauge can be a frustrating problem for Chevy truck owners. However, by checking the fuel sending unit, wiring, and gauge, truck owners can identify and fix the issue. It is important to consult a professional mechanic for any repairs that may be needed to ensure the safety and reliability of the truck.