Cadillac Repair: fuel pump, 1997 cadillac sls, electric fuel pump

Question
QUESTION: I remember the older Cadillacs would make a buzzing sound and a light won the dash would display "leveling". I have 1997 Cadillac SLS, is the buzzing sound I hear after turn the ignition to the on position the fuel pump?

ANSWER: If the buzzing noise only lasts for TWO SECONDS and then stops, YES, This would be the fuel pump.

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QUESTION: How will I know if the fuel pump is bad?

Answer
If the fuel pump is faulty or not receiving a TURN ON 2 SECOND signal you will NOT hear the 2 second pump run when you turn the ignition key to the ON position and not trying to start the engine.

Here is a test procedure to see if the fuel pump works when your problem occurs.

1. Remove the gas cap.

2. Listening very carefully with your head out the door and getting as close to the ground and listening at the gas tank.

3. Turn the ignition switch to the ON position ONLY, Do NOT try and start the engine. You should be able to hear the electric fuel pump motor run for only 2 seconds and then it will stop.

4. If you can hear it run for the 2 seconds and then stop, You do NOT have a fuel pump problem.

   (a) If you do NOT hear the fuel pump run for the 2 seconds and stop then the fuel pump is faulty and requires replacement.

5. If the fuel pump is OK, You need to check for spark to the spark plugs.