
The fuel level sending unit is located in the fuel tank of a Chevy S10 pickup and sends a constant signal indicating the amount of fuel that remains in the tank. The fuel level sensor has a mechanical arm extending to the top of the fuel inside the tank, which floats on the top of the fuel. As the arm moves down, the signal strength from the sending unit decreases, and this information is sent to the fuel level gauge for driver awareness. The sending unit and fuel pump are often replaced together, and the level of difficulty will be described by the repair procedure for the particular vehicle. The cost of replacing the fuel sending unit will depend on the year of the Chevy S10 pickup. For example, a replacement fuel sending unit for a 1985-1987 Chevy S-10 Pickup 20-gallon gas tank without fuel injection for a 2.5L engine costs $119.99.
| Characteristics | Values |
|---|---|
| Difficulty of replacement | Some fuel level sending units are difficult to replace, but most can be accomplished within an hour |
| Fuel tank removal | If there is no service port for the fuel tank, the fuel tank must be removed |
| Replacement cost | Not specified, but RepairPal offers a fair price estimate |
| Compatibility | Fits 1985-1987 Chevy S-10 Pickup 20-gallon gas tank sending unit without fuel injection for 2.5L engine and 1986-1987 2.8L engine |
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What You'll Learn
- The fuel level sending unit is located in the fuel tank
- The fuel level sensor has a mechanical arm that extends to the top of the fuel inside the tank
- The fuel level sending unit replacement cost varies depending on your location
- The fuel sending unit is manufactured to original factory specifications
- The fuel sending unit and fuel pump must often be replaced together

The fuel level sending unit is located in the fuel tank
The sending unit and fuel pump are often replaced together. They are unbolted from the fuel tank and disconnected from the fuel and electrical connectors. The technician will disconnect the battery prior to accessing the fuel pump. The new pump is then inserted, connected, and tested prior to reassembly of the vehicle.
Some fuel level sending units are difficult to replace, and some are simple. The level of difficulty will be described by the repair procedure for the particular vehicle, but most can be accomplished within an hour. If there is no service port for the fuel tank, the fuel tank must be removed.
You can purchase a replacement fuel sending unit for the Chevy S-10 Pickup manufactured to original factory specifications. This fits the 1985-1987 Chevy S-10 Pickup 20-gallon gas tank sending unit without fuel injection for a 2.5L engine and the 1986-1987 2.8L engine.
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$47.45 $49.95

The fuel level sensor has a mechanical arm that extends to the top of the fuel inside the tank
The fuel level sending unit in a Chevy S10 pickup is located in the fuel tank. It has a mechanical arm that extends to the top of the fuel inside the tank. This arm floats on the top of the fuel, and as the arm moves down, the signal strength from the sending unit decreases. This information is sent to the fuel level gauge so that the driver is aware of how much fuel is left in the tank.
The fuel level sending unit can be difficult to replace, but most replacements can be accomplished within an hour. If there is no service port for the fuel tank, the fuel tank must be removed. The sending unit and fuel pump are often replaced together. They are unbolted from the fuel tank and disconnected from the fuel and electrical connectors. The technician will disconnect the battery prior to accessing the fuel pump.
The cost of replacing the fuel sending unit will depend on the year of the Chevy S10 pickup. For example, a replacement unit for a 1985-1987 Chevy S-10 Pickup 20-gallon gas tank without fuel injection for a 2.5L engine costs around $100.
It is important to note that the level of difficulty in replacing the fuel sending unit will vary depending on the specific vehicle. The repair procedure for the particular vehicle will describe the level of difficulty.
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The fuel level sending unit replacement cost varies depending on your location
Some fuel level sending units are difficult to replace, and some are simple. The level of difficulty will be described by the repair procedure for the particular vehicle, but most can be accomplished within an hour. If there is no service port for the fuel tank, the fuel tank must be removed. Often, the sending unit and fuel pump must be replaced together. They are unbolted from the fuel tank and disconnected from fuel and electrical connectors.
For example, a GMSU-S10PE GAS TANK Sending Unit for 1985-1987 Chevy S-10 Pickup 20-gallon gas tank sending unit without fuel injection for a 2.5L engine and 1986-1987 2.8L engine includes a new lock ring, O-ring and in-tank fuel filter.
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The fuel sending unit is manufactured to original factory specifications
The level of difficulty for replacing the fuel sending unit varies depending on the vehicle. Most replacements can be accomplished within an hour. If there is no service port for the fuel tank, the fuel tank must be removed. Often, the sending unit and fuel pump must be replaced together. They are unbolted from the fuel tank and disconnected from the fuel and electrical connectors. The technician will disconnect the battery prior to accessing the fuel pump. The new pump is then inserted, connected, and tested prior to reassembly of the vehicle.
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The fuel sending unit and fuel pump must often be replaced together
The sending unit and fuel pump are unbolted from the fuel tank and disconnected from the fuel and electrical connectors. The technician will disconnect the battery prior to accessing the fuel pump. The new pump is then inserted, connected, and tested prior to reassembly of the vehicle.
Some fuel level sending units are difficult to replace, and some are simple. The level of difficulty will be described by the repair procedure for the particular vehicle, but most can be accomplished within an hour. If there is no service port for the fuel tank, the fuel tank must be removed.
A replacement fuel sending unit for the 1985-1987 Chevy S-10 Pickup 20-gallon gas tank without fuel injection for a 2.5L engine and 1986-1987 2.8L engine can be purchased from Gas Tank Depot. It includes a new lock ring, O-ring and in-tank fuel filter.
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Frequently asked questions
The cost will depend on the year of your Chevy S10 pickup. For example, a replacement unit for a 1985-1987 Chevy S-10 Pickup 20-gallon gas tank without fuel injection for a 2.5L engine costs $109.95.
Most replacements can be accomplished within an hour. However, some fuel level sending units are more difficult to replace than others.
Often, the sending unit and fuel pump must be replaced together. They are unbolted from the fuel tank and disconnected from the fuel and electrical connectors.











































