To see what this tool looks like, click here: Wire Piercing Probe. This tool is a time saver of the first order.If you need to buy one or are looking to upgrade, check out my recommendations here: Buying A Digital Multimeter For Automotive Diagnostic Testing.A digital or analog multimeter will work.You need a few basic things and they are: You can find this tutorial in Spanish here: Cómo Probar El Relé De La Bomba De Gasolina (Relé Verde) (at: ). ORIGINAL ENGINE MANAGEMENT Part # DR1039.The following tutorial may be of help: How To Test The Fuel Pump (Ford 4.9L, 5.0L, 5.8L) (at: ). If it has already been replaced with an after-market one, this relay won't be green, but will have a gray body. If your fuel injected Ford pickup, van, or car still has the Ford relay, this bad boy will be a green color (like the one in the image above). You'll be able to find out if the fuel pump relay, or the fuel pump inertia switch, or the fuel pump is the cause of the no-start condition on your Ford car or pickup. With the help of this 'How To' tutorial, I'll show you how to do it using only a multimeter. Testing the Ford fuel pump relay on the car is not hard to do.

2006 ford expedition fuel pump location