Replacing The Fuel Pump In Your 2010 Silverado: Step-By-Step Guide

If your Chevy Silverado is experiencing poor gas mileage or won't start, it may be time to replace the fuel pump. This is a moderately complicated job that is best performed by a mechanic, but if you're feeling adventurous, here's a step-by-step guide to help you get started. First, relieve the pressure in the fuel system by opening the gas cap and removing the fuel pump relay. Next, disconnect the negative battery cable and siphon the fuel from the tank. Raise the rear end of the Silverado and remove the screws mounting the flange for the gas cap door. Disconnect the shield over the tank and the filler pipe's ground strap. Remove the EVAP canister and disconnect the fuel supply and return lines. Support the tank with a transmission jack, unbolt and remove the straps, and then carefully lower and remove the tank. With the tank out of the way, you can now access the fuel pump module. Clean the surfaces of the tank, install the new fuel pump module, and reverse the steps to reassemble the vehicle.

Removing the bed

To remove the bed of your 2010 Silverado when replacing the fuel pump, follow these steps:

First, relieve the pressure within the fuel system. Open the gas cap on the side, remove the fuel pump relay from the fuse box, and then start the engine and let it run until it stalls. Disconnect the negative battery cable. Next, siphon the fuel from the tank into a gas container.

Now, you can begin to physically remove the bed. Raise the rear end of the Silverado on jack stands and block the front wheels. Use an Allen wrench to remove the screws mounting the flange for the door to the gas cap. Disconnect and remove the shield over the tank and the filler pipe's ground strap.

At this point, you can remove the EVAP canister by disconnecting the hoses and removing the bracket mounting bolt. Disconnect the fuel supply and return lines, and then support the tank by raising a transmission jack underneath it.

Finally, unbolt and remove the straps holding the bed in place, and carefully lower and remove the bed from the Silverado.

With the bed removed, you can now access the fuel pump for replacement.

Disconnecting the battery

Firstly, locate the battery in your Silverado's engine compartment. The battery is typically located near the front of the vehicle, on the driver's side. Once you have located the battery, identify the ground cable, which is usually a thick, black cable connected to the negative (-) terminal of the battery. Using a suitable wrench or socket, loosen and remove the nut or bolt that secures the ground cable to the battery terminal. Be cautious and avoid any sparks or open flames during this process.

Next, carefully set the cable aside, ensuring it does not touch any metal surfaces or create a short circuit. Covering the end of the cable with a piece of electrical tape can provide extra protection. At this point, you have successfully disconnected the battery ground cable.

Now, we need to relieve the pressure within the fuel system. To do this, open the gas cap on the side of the vehicle. Then, locate the fuel pump relay within the fuse box and remove it. With the gas cap open and the fuel pump relay disconnected, attempt to start the engine. It should run for a short time and then stall due to the lack of fuel pressure.

After the engine has stalled, ensure it is turned off, and carefully reconnect the ground cable to the negative terminal of the battery. Tighten the connection securely with your wrench or socket.

By following these steps, you will have safely disconnected and reconnected the battery, allowing you to proceed with the next steps in replacing the fuel pump on your 2010 Silverado. Remember to exercise caution and refer to a professional mechanic if you have any doubts or concerns.

Relieving fuel pressure

To relieve fuel pressure in a 2010 Silverado, follow these steps:

Firstly, open the gas cap on the side of the vehicle. Then, remove the fuel pump relay from the fuse box. Now, start the engine and let it run until it stalls. This process will relieve the pressure within the fuel system.

Next, disconnect the negative battery cable. Siphon the fuel from the tank into a gas container. This will ensure that no fuel is left in the tank, making it safer to work on. It is important to note that siphoning fuel can be dangerous and should only be done with proper safety precautions in place.

Now that the pressure is relieved, you can proceed with the rest of the fuel pump replacement procedure. Remember to exercise caution when working with fuel and always refer to a qualified mechanic if you are unsure about any steps in the process.

If you are looking for a more general guide on how to replace the fuel pump on a 2010 Silverado, I can provide a step-by-step breakdown.

Removing the gas tank

Before you begin, relieve the pressure within the fuel system. Open the gas cap, remove the fuel pump relay from the fuse box, and start the engine. Let it run until it stalls. Disconnect the negative battery cable, and siphon the fuel out of the tank into a gas container.

Now, raise the rear end of the Silverado on jack stands and block the front wheels. Use an Allen wrench to remove the screws mounting the flange for the door to the gas cap. Disconnect and remove the shield over the tank and the filler pipe's ground strap.

Remove the EVAP canister by disconnecting the hoses from the canister and removing the bracket mounting bolt. Disconnect the fuel supply and return lines. You can do this by pressing the retaining tabs for plastic quick-connect fittings and using a fuel line separator tool for metal collar fittings.

Next, support the tank by raising a transmission jack underneath it. Then, unbolt and remove the straps and lower the tank. You can now unplug the electrical connectors to the fuel pump module and disconnect the filler hose from the tank by loosening its clamps. Remove the tank.

Disconnect the EVAP and fuel lines from the pump module on top of the tank. Release the locking tab on the retaining ring with a pointed instrument, while rotating the ring counter-clockwise with locking pliers.

Installing the New Fuel Pump Module

Clean the surfaces of the tank, and make sure the new pump module has a fresh seal. Align the fuel line fittings with the lines as you install the module in the tank, pressing it down until it is seated. Install the retaining ring, making sure it is fully seated and the locking tab is within the ring's slot.

Reinstalling the Gas Tank

Install the fuel tank back on the truck in reverse order of removal. Re-pressurize the fuel system. With the fuel pump relay connected and the gas cap closed, turn the ignition on for 2 seconds, then shut it off for at least 5 seconds. Repeat this procedure five to ten times.

Installing the new fuel pump

To install the new fuel pump, you will need to first ensure the new pump module has a fresh seal.

Then, clean the surfaces of the tank and align the fuel line fittings with the lines as you install the new module. Press the module down until it is seated. Install the retaining ring, ensuring it is fully seated and the locking tab is within the ring's slot.

Next, replace the fuel tank and reinstall the gas tank straps. You may need an additional person or two to help with this step, depending on how full the tank is.

Reattach the fuel filler neck to the tank and make sure the clamp is secure. Reconnect the electrical plugs to the fuel pump and reconnect all the fuel lines to the vehicle.

Finally, reconnect the fuel pump relay and the battery. Prime the engine by turning it on and pumping the gas while the vehicle is in park.

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