First of all you need to determine if the fuel pump is working. When ignition is turned, the fuel pump should prime the system and then stop until you start cranking.
If the fuel pump is not working, you need to test for battery voltage to the fuel pump. You can use direct battery voltage to the fuel pump to test.
Is engine 4.8 L or 5.3 L?
Underhood there is a fuel pump relay. Check if the relay is being energised and if there is output voltage to the fuel pump.
Thursday, December 16th, 2010 AT 1:41 PM