Question about 1998 Ford Ranger
Three wires - the dark green with yellow stripe comes from the fuel pump relay ! When energized the relay sends battery voltage to the inertia switch via the dark green with yellow stripe wire . Inertia switch's don't go bad ! What's the problem ? fuel pump not working ? Test from the relay > Do you know what a relay is and how it works ? Watch this guy's video ! He shows chrysler first then ford . Do you know how to do electrical testing ! It doesn't matter that your inertia swich has three wires . Only two matter ! Fuel Pump Electrical Circuits Description and Operation
Posted on Dec 29, 2016
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Posted on Jan 02, 2017
It is an inertia switch, meaning that it works when there is a sudden change in inertia. The switch is closed by default and opens in an accident or rollover. You can easily remove this safety feature from your system by simply unhooking the connector and jumping across the 2 terminals with a piece of wire. But I strongly advise against this. This is a $50 dealer part that is easily replaced if it is bad. It is a great safety feature that may save your life.
Posted on Dec 17, 2009
Who cares if it is a safety system? my 05 won't even make it out of the driveway without the thing going off and killing my truck. All because I hit a pothole. If you know how, please tell us. I took it into the shop and the mechanic got 2 new switches from Ford and neither one fit. So either I am going to have spend another $1000 dollars because you have a moral stick up your you know what, or you could help us out.
Posted on Apr 08, 2010
SOURCE: 98 Ford Ranger 2.5 liter
Iwould check the fuel pump next for 12 volts . If you have it there then you need to look at the fuel pressure regulator. The way this works is one side hooks to engine manifold vacuum and the other is pressure from the fuel pump and supplys the injectors no electrical involved but if the diafram goes or leaks you would get less or no fuel to the injectors . Its kind of hard to say for sure with out seeing it but it sounds like a no fuel issue it could be the pump so you need to investigate some more to find out if it is electrical or fuel related good luck with it
Posted on Mar 09, 2011
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