Here are the steps on how to replace the fuel pump in a 1999 Suburban:
1. Relieve the fuel system pressure. This can be done by removing the fuel pump relay or by disconnecting the fuel line at the fuel filter.
2. Drop the fuel tank. To do this, you will need to remove the bolts that hold the fuel tank in place. There are two bolts on each side of the tank.
3. Disconnect the fuel lines. Once the fuel tank is dropped, you will need to disconnect the fuel lines from the fuel tank. Use the fuel line disconnect tool to release the fuel lines.
4. Remove the fuel pump assembly. The fuel pump assembly is located inside the fuel tank. To remove it, you will need to remove the bolts that hold it in place.
5. Install the new fuel pump assembly. Place the new fuel pump assembly into the fuel tank and secure it with the bolts.
6. Reconnect the fuel lines. Connect the fuel lines to the fuel tank using the fuel line disconnect tool.
7. Raise the fuel tank. Raise the fuel tank and secure it with the bolts.
8. Reconnect the fuel pump relay or fuel line.
9. Start the engine and check for leaks.
Here are some additional tips for replacing the fuel pump in a 1999 Suburban:
* Be sure to use a new fuel filter when you replace the fuel pump.
* If you are not comfortable working on your own vehicle, you can have the fuel pump replaced by a qualified mechanic.
* The fuel pump is located inside the fuel tank, so you will need to drop the fuel tank to access it.
* Be sure to relieve the fuel system pressure before dropping the fuel tank.
* Use caution when working with gasoline, as it is flammable.
