Easy tips

How to check the fuel pump inertia switch?

How to check the fuel pump inertia switch?

For more info on the fuel pump inertia switch, take a look at this section: Checking The Fuel Pump Inertia Switch. OK, to get this show on the road, this is what you’ll need to do: Remove the intake air duct from the throttle body. You don’t have to completely remove it, since you’ll have to reconnect it in one of the next steps.

Can a bad fuel pump make a Ford Explorer not start?

A bad fuel pump will make your 4.0L Ford Explorer (Ranger, Aerostar, or Mountaineer) Crank but Not Start. Here are some more specific symptoms: The ignition coil pack is creating and delivering spark to all six spark plugs. So you know that the ignition system is not at fault.

How do you test a Ford 4.0L fuel pump?

You don’t have to completely remove it, since you’ll have to reconnect it in one of the next steps. Open the throttle, manually, and spray starting fluid down the bore. When you have sprayed a good squirt of starting fluid, quickly reconnect the Air Duct to the throttle body (you don’t have to tighten the Hose Clamp).

Where is the inertia switch on Ford 4.0L?

This means that it’s always a good idea to check and reset the inertia switch whenever testing the fuel pump. On the majority of the vehicles covered by this tutorial, the inertia switch is located below the right side of the instrument panel, behind the trim panel.

Where is the fuel pump inertia switch located?

On the majority of the vehicles covered by this tutorial, the inertia switch is located below the right side of the instrument panel, behind the trim panel. Resetting the fuel pump inertia switch simply involves pushing down on the button located on top of the inertia switch till it bottoms out.

Where is the fuel pump on a Ford 4.0L?

The fuel pump is OK. I suggest you take a look at the following tutorial: How To Troubleshoot A No Start (Ford 4.0L), to see more testing options. The Schrader Valve, on the 4.0L Ford V6 engine is located on the injector fuel rail.

What does 0 psi mean on fuel pump?

1.) The fuel pressure gauge will register 35 PSI, or 2.) The fuel pressure gauge will register 0 PSI. OK, now that the testing part is done, let’s take a look at what your results mean: CASE 1: If the fuel pressure gauge registered 0 PSI.

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Ruth Doyle