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How do you check the operation of fuel pump on a 2000 gmc jimmy?

To check the operation of the fuel pump on a 2000 GMC Jimmy, you can follow these steps:

1. Turn the key to the "ON" position. This will power up the fuel pump without starting the engine.

2. Listen for the fuel pump. You should hear a humming or whirring sound coming from the fuel tank area. This sound indicates that the fuel pump is operating.

3. If you don't hear the fuel pump, it could be a sign that it is faulty or that there is a problem with the electrical connection. You can check the electrical connection by disconnecting the fuel pump connector and testing for voltage with a voltmeter. If there is no voltage, the problem may be with the wiring or the fuel pump relay.

4. If the fuel pump is humming or whirring but the engine won't start, it may be a sign that the fuel filter is clogged. You can check the fuel filter by disconnecting it and blowing through it. If it is difficult to blow through, it is clogged and needs to be replaced.