Safety First:
* Disconnect the negative battery terminal before starting any work.
* Work in a well-ventilated area. Gasoline fumes are highly flammable and dangerous.
* Wear safety glasses and gloves.
* Have a fire extinguisher nearby.
* Use a fuel-safe container to collect any spilled gasoline.
Tools You'll Need:
* Jack and jack stands (crucial for safety)
* Wheel chocks
* Socket wrench set (metric)
* Torque wrench
* Fuel line disconnect tools (various sizes may be needed)
* Screwdrivers (Phillips and flathead)
* Pliers
* Wire cutters/strippers
* New fuel pump assembly (ensure it's the correct one for your year, model, and engine)
* Shop rags or absorbent towels
* Safety glasses
* Gloves
* Fuel-safe container
Steps:
1. Prepare the Vehicle: Park the truck on a level surface, engage the parking brake, and use wheel chocks. Jack up the truck and securely support it on jack stands under the frame, not the axle.
2. Lower the Fuel Tank: This is the most challenging part. The method varies slightly depending on the specific fuel tank configuration but generally involves:
* Accessing the fuel tank straps: You'll likely need to remove parts of the bed liner or access panels underneath the truck. Consult a repair manual for your specific model.
* Removing the fuel tank straps: These are usually bolts or clips. Carefully loosen and remove them, supporting the tank as you go. Some trucks require lowering the exhaust system slightly to provide more clearance.
* Lowering the fuel tank: Carefully lower the tank, using straps or a suitable support to prevent it from dangling freely or getting damaged. Disconnect the filler neck and fuel lines.
3. Disconnect Fuel Lines and Electrical Connector: Use appropriate fuel line disconnect tools to carefully separate the fuel lines. You'll likely need to relieve pressure in the fuel system. This is usually done by running the engine until it stalls after several attempts to start it or by removing the fuel pump relay. Once the pressure is relieved, disconnect the electrical connector to the fuel pump.
4. Remove the Fuel Pump Access Panel: The access panel is usually located on the top of the fuel tank. This may involve removing bolts or clamps.
5. Remove the Old Fuel Pump: Once the access panel is removed, you'll see the fuel pump assembly. Carefully remove it, paying attention to the o-ring or gasket. You might need to use pliers or other tools to remove the retaining ring or clamps holding the pump in place.
6. Install the New Fuel Pump: Carefully install the new fuel pump assembly, ensuring the o-ring or gasket is properly seated. Reconnect the electrical connector, fuel lines, and access panel.
7. Raise the Fuel Tank: Carefully raise the fuel tank back into position, reattaching the straps and ensuring all connections are secure.
8. Reconnect Fuel Lines and Electrical Connector: Double-check all fuel lines and electrical connections are securely fastened.
9. Lower the Truck: Carefully lower the truck from the jack stands.
10. Reconnect the Battery: Reconnect the negative battery terminal.
11. Check for Leaks: Inspect all connections for leaks. Start the engine and check for any fuel leaks.
Important Notes:
* Consult a Repair Manual: A repair manual specific to your 2001 Chevy Silverado 1500 is highly recommended. It will provide detailed diagrams, torque specifications, and specific instructions for your model.
* Fuel Pump Strainer: Consider replacing the fuel pump strainer (sock) while you're at it, as it's relatively inexpensive and prevents debris from entering the fuel pump.
* Professional Help: If you're not comfortable performing this repair yourself, it's best to take your truck to a qualified mechanic. Improperly performed fuel pump replacements can be dangerous.
This is a general overview. Specific steps might vary slightly depending on your truck's configuration. Always refer to a repair manual for detailed, model-specific instructions. Failure to follow safety procedures can result in serious injury or property damage.
