If you're having fuel delivery problems, the issue is likely one of the following:
* Fuel pump failure: This requires replacement.
* Blown fuse: Check your owner's manual for the fuel pump fuse location and replace it if necessary.
* Faulty fuel pump relay: This relay is what activates the pump; a faulty relay prevents the pump from receiving power. You can test this relay or replace it as a troubleshooting step.
* Low fuel pressure: This could stem from various issues, including a clogged fuel filter, faulty fuel pressure regulator, or a problem within the fuel lines themselves.
* Electrical problem: A short circuit or other wiring fault could be preventing the pump from operating.
Before you start replacing parts, try this:
1. Check the fuel level: Make sure you actually have fuel in the tank! This sounds obvious, but it's a common oversight.
2. Check the fuses and relays: This is a quick and easy first step.
3. Listen for the fuel pump: Turn the ignition key to the "ON" position (don't start the engine). You should hear a brief humming sound from the fuel pump. If you don't hear it, then there is a problem with the power getting to the pump.
If you've checked these things and are still experiencing fuel delivery issues, it's best to take your Silverado to a qualified mechanic for diagnosis and repair. They have the tools and expertise to accurately identify the problem.
