Fuel Pumps
Cadillac DeVille

How do you tell if the fuel pump was bad or going out in a 1994 cadillac sedan deville?

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Wiki User
March 10, 2007 10:20PM

When you turn the ignition to ACC or On you'll hear a buzzing or whirring sound. If this sound isn't heard you'll have to drop the fuel tank and replace it. Get it done by a proffesional.