
The fuel tank on a 76 Ford F150 is located behind the seat in the cab, and there is also a side-mounted auxiliary fuel tank. There are two different filler hoses for the aft axle fuel tank: one with an Evaporative Emission System and one without. The hose must be made of neoprene rubber to prevent rotting.
| Characteristics | Values |
|---|---|
| Fuel tank capacity | 17-19 gallons |
| Fuel tank location | Between the frame rails, behind the seat, or underneath the cab |
| Fuel tank type | Aft axle fuel tank with or without an Evaporative Emission System |
| Fuel tank hose material | Neoprene rubber |
| Fuel tank selector | Manual lever or switch at the base of the driver's side floor |
| Fuel gauge functionality | May vary, some users report issues with accuracy |
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What You'll Learn

The 1976 F150 has dual fuel tanks
The 1976 F150 Styleside pickup has an aft-axle fuel tank, which can be equipped with or without an Evaporative Emission System. If the vehicle has the Evaporative Emission System, there will be a charcoal canister mounted on the frame rail next to the alternator. A round fuel vapour valve is nestled into the top of the fuel tank, with a line routing from it to the canister.
The fuel tanks on the 1976 F150 are known to have some issues. One common problem is the front tank gauge reading empty when it still has fuel, which is a common issue with dual-tank F Series trucks from 1979 to 1997. Additionally, the original sending unit on the 1976 F150 has been reported to read the fuel gauge too high, and the outlet tubing size may not match the vehicle's specifications.
It is important to note that the hoses used for the fuel system must be made from neoprene rubber to prevent them from rotting out within a short time.
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One tank is behind the seat, the other is underneath the cab
The 1976 Ford F-150 was a powerful truck with a unique fuel tank setup. One tank is located behind the seat, while the other is positioned underneath the cab, offering a dual-tank system for extended range and convenience. This setup was common in trucks from the 1970s, providing a total fuel capacity of around 17-19 gallons, which, at 10 mpg, didn't offer the same range as newer trucks with larger single tanks.
The rear-mounted tank on the driver's side of the Ford F-150 is accessible through a fuel filler hose, which connects to the fuel neck opening. This hose is an essential component, and it must be made from neoprene rubber to prevent early deterioration due to rot. The filler hose is available with or without an Evaporative Emission System, and it can be a challenge to source a quality hose that doesn't dry rot and leak.
The second fuel tank, located underneath the cab, is manually controlled with a lever, as electronic valves were not yet in use. This tank is selected by a switch at the base of the driver's side floor, which was sometimes removed for safety reasons. The tanks are connected by a tank selector valve, located in front of the rear tank, which allows fuel to be drawn from either tank.
The dual-tank setup in the 1976 Ford F-150 provides a unique glimpse into the past, showcasing the innovative solutions of the time to extend the range of these powerful trucks. While newer models have adopted larger single tanks, the dual-tank system remains an interesting feature of the F-150's history.
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The fuel tank is located between the frame rails
The fuel tank on a 76 Ford F150 is located between the frame rails. This offers a good deal of protection for the tank. The tank is located directly on the other side of the bed itself, with no frame component to protect it.
The 76 Ford F150 has dual tanks, with both tanks mounted between the frame on the bed. The front tank has a trough that it sits in, and the rear tank has two straps and hoses, as well as a hose on top for pressure release. The tank selector switch is located on the frame above the rear end.
The fuel tank has a capacity of 17-19 gallons, which doesn't last very long at 10mpg. Newer trucks have a single tank that is 30 gallons or more.
The fuel tank sending unit is located midship and has a 19-gallon tank. The sending unit will need to be raised in order to be replaced.
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The fuel tank hose must be made of neoprene rubber
The 1976 Ford F150 was a pickup truck with a fuel tank located behind the seat, and another one underneath the cab. The fuel tank hose that runs from the fuel-neck-opening to the rear gas tank must be made of neoprene rubber. This is because neoprene (also known as Nitrile or Buna-n) is not affected by petroleum products, unlike other types of rubber.
Neoprene rubber is the preferred material for fuel hoses, as it is resistant to the fuel and will not rot or degrade over time. This is important because if the hose is not made from neoprene, it will rot out within a very short time, regardless of whether the vehicle is stored indoors or outdoors.
The use of neoprene rubber in fuel hoses is essential for the safe and efficient operation of the Ford F150. It is important to ensure that the hose is specifically designed for fuel and certified for gasoline to prevent any issues with the fuel system. Additionally, the hose should have a conductive chemical additive to allow for the safe discharge of static electricity that builds up due to the fuel flowing within the hose.
When selecting a fuel hose for the 76 Ford F150, it is crucial to choose one made of neoprene rubber to ensure longevity and prevent leaks. The hose should also be properly clamped and secured to avoid any fuel leaks or evaporation. It is recommended to seek high-quality parts and follow manufacturer guidelines for the best results.
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The fuel tank sending unit is located midship
The 1976 Ford F-150 pickup truck has two fuel tanks. One is located behind the seat, and the other is located underneath the cab. The fuel tank sending unit is located midship. This means that it is situated in the middle of the truck, mounted on a cross member of the frame.
The fuel tank sending unit is responsible for monitoring the fuel level in the tank and sending this information to the fuel gauge. This allows the driver to keep track of how much fuel is in the tank and refuel when necessary. The sending unit typically needs to be replaced when it fails or becomes clogged, which can cause the fuel gauge to read inaccurately or not at all.
When replacing the fuel tank sending unit on a 1976 Ford F-150, it is important to consider the outlet tubing size, as there may be variations depending on the engine size and other factors. It is also important to note that the fuel tank is located between the frame rails, which offers some protection in the event of a crash.
Additionally, the 1976 Ford F-150 may have a charcoal canister mounted on the frame rail adjacent to the alternator as part of the evaporative emission system. This system helps to reduce the amount of fuel vapors released into the atmosphere and can impact the fuel tank and sending unit configuration.
Overall, the fuel tank sending unit on a 1976 Ford F-150 is located midship, and proper maintenance and consideration of related components are crucial for optimal fuel system performance.
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Frequently asked questions
The fuel tank on a 76 Ford F150 is located behind the seat in the cab.
Yes, there can be two fuel tanks on a 76 Ford F150. One behind the seat and another underneath the cab.
The hose from the fuel-neck-opening to the rear axle gas tank should be made from neoprene rubber.



















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