Where is the fuel pump on a 2018 Chevy Silverado?
The fuel pump sits inside the fuel tank (an in-tank pump). Access for service is typically through a removable panel located under the rear seat in the cab, though the exact spot can vary by cab style and trim.
In practice, the 2018 Silverado uses an electric fuel pump integrated into the fuel pump module inside the tank. To reach it, most owners fold down or remove the rear-seat cushion to expose the top of the tank and an access hatch. The hatch is usually circular or rectangular and is secured by a locking ring or screws. If the panel isn’t immediately visible, consult the vehicle’s manual or a professional technician, as some configurations may require lowering the tank for access.
Location and access details
To help owners identify where to look, here are the typical elements you’ll encounter on most 2018 Silverado models.
- In-tank fuel pump assembly: The pump is mounted inside the fuel tank and powers the fuel delivery system.
- Rear-seat access: A removable or fold-down rear seat cushion provides access to the underside area where the tank top is located.
- Access panel on the tank: A circular or rectangular hatch on the top of the fuel tank can be removed to expose the pump module; the panel is usually secured by a locking ring or screws.
- Connections: Electrical and fuel-line connections connect to the pump module; disconnecting these should be done with care to avoid leaks or sparks.
- Tank support considerations: Depending on cab configuration, the tank may need to be supported or lowered for full access, especially if the access panel is not visible from inside the cab.
In practice, most owners find the access panel behind the rear seat, within reach from inside the truck cabin. If the access panel isn’t accessible or clearly visible, consult the service manual for your exact VIN and cab style or seek a professional service.
Variations by cab configuration
While the fundamental design—a pump in the tank—remains the same, the exact location and access method can vary with the Silverado’s cab style (Regular, Double, Crew) and bed length. Some configurations place the access hatch more readily within the seat area, while others may require removal of coverings in the cargo area or, in some cases, lowering or removing the fuel tank to reach the module.
Safety and maintenance considerations
Because the fuel system is involved, take standard safety precautions: disconnect the battery, relieve fuel system pressure, work in a well-ventilated area, and avoid open flames or sparks. If you’re not experienced with automotive fuel systems, it’s wise to have a certified mechanic perform the inspection or replacement.
Summary
The 2018 Chevy Silverado’s fuel pump is located inside the fuel tank. Access for service is usually via a removable panel located behind the rear seat inside the cab, though exact placement can vary with cab configuration. When in doubt, consult the owner’s manual or a qualified technician.
Where is the fuel pump located?
The fuel pump is most commonly located inside the vehicle's fuel tank, submerged in fuel and accessed through a panel under the rear seat or in the trunk. In modern vehicles with Gas Direct Injection (GDI) systems, there is also a secondary high-pressure fuel pump located near the fuel rail in the engine compartment. In older cars with mechanical fuel pumps, they are often mounted on the side of the engine block.
This video shows the location of the fuel pump inside the fuel tank: 57sScotty KilmerYouTube · Jun 23, 2011
In most modern vehicles
- Location: Inside the fuel tank, which is usually located under the rear seat or in the trunk.
- Access: A panel on the vehicle's floor or trunk provides access to the pump assembly, which is mounted to the top of the tank.
- Function: The pump is submerged in fuel, which helps keep it cool and ensures a consistent supply.
In vehicles with GDI systems
- Location: In addition to the in-tank pump, there is a secondary, high-pressure pump.
- Access: This secondary pump is located near the fuel rail in the engine compartment.
In older vehicles
- Location: The mechanical fuel pump is often located outside the fuel tank.
- Access: It is typically mounted on the side of the engine block and driven by the camshaft.
Where is the fuel pump module located on a 2018 Chevy Silverado?
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Where is the fuel pump on a Chevy Silverado?
The fuel pump on a Chevy Silverado is located inside the fuel tank, which is under the truck bed. To access it, you typically have to either drop the fuel tank, raise the truck bed, or remove the bed entirely.
This video shows the location of the fuel pump on a Chevy Silverado: 58sMatt's ShopYouTube · Oct 22, 2016
- Location: The fuel pump is part of an assembly located on the top of the fuel tank, accessible from underneath the vehicle.
- Accessing the pump:
- The most common method is to lower the fuel tank by unbolting the straps that hold it in place.
- Some models allow for access by raising or removing the truck bed.
- Another option is to cut an access panel in the bed of the truck, but this is a more invasive method.
- Replacing the pump: Once the tank is lowered or the bed is raised, you will see the fuel pump assembly on the top of the tank. It is held in place by a retaining ring. You will need to disconnect electrical connectors and fuel lines before removing the ring to take out the old pump and install the new one.
This video demonstrates how to access and remove the fuel pump from the fuel tank: 49s603 Mechanic vidsYouTube · Feb 13, 2025
How much does it cost to replace a fuel pump on a 2018 Chevy Silverado?
$1192 - $1319. “Dealer” refers to service centers that specialize in one or two makes and sell those vehicles.
