Question about 2006 Ford Expedition XLT
Changed the fuel rail pressure gauge, and the drivers fuel module. sometimes will start and sometimes it doesnt. ive learned that if i turn the key to on and hear a click under truck it will start. If i dont hear the click, it may start then just die
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Posted on Jan 02, 2017
SOURCE: 1992 ford ranger
If this speratic problem seams to happen most when it's raining or damp, it is a shorting master contol that is to blame. The master control mother board is located on the firewall. Over time, the moisture seal on the cover fails and the motherboard gets damp and meny false signals are sent. This can even happen if the truck is off and key is not in the ignition (this mother board will alwas have power going to it as long as the battery is connected). A cheap way to check this is to remove the cover, put a plastic grocery bag over the mother board and use an small elastic band to close the open end, allow the wires connected to the mother board to go out the open end. If this solves the problem, replace the seals on the master control cover. Care should be taken as if there is ANY corrossion on the mother board, it will need to be replaced.
Posted on Oct 28, 2008
I had this same issue. There is an inertia switch located below glove box. Mine went bad. Here is what I wrote to another person with the similar problem:
I have a 2005 Ranger Edge. I had the same problem. I did two things. First I replaced the fuel pump and it worked again for about 2 months. Then it stopped working again so I replaced the inertia switch with a new one from the Ford Dealership. It worked again for about a month. Than it stopped again, so I replaced the wiring that goes from the inertia switch to the main box on the bottom right passenger side. I also put the inertia switch inside the casing on the lower right so it couldn't be kicked. It has been working for 2 weeks now. I hope nothing else happens.
On another note, I had another electrical problem. My speedometer cluster stopped working and my mechanic found loose wires rubbing against metal on the inside. I think the electrical components on these Ford Rangers are just cheaply made. That is the only thing to check for you now. If it isn't the fuel pump or the inertia switch, just check all the wiring from fuel pump to inertia switch to make sure it is all done correctly. Also check all fuses for fuel pump/inertia switches.
Sometimes I say I and mean a mechanic, I am not a car expert, but would like to be.
Posted on Apr 14, 2009
remember the switch only gets power for 1 second when u turn the key on, the common problem is the ignition starter switch comes apart, it is located at top of the steering column near the bottom, drop the column down (2 nuts) and inspect the switch for separation.
Posted on Jul 27, 2009
Are you sure the spark is sufficient? I have seen weak coils cause your problem also bad coil wires loosing to much voltage to the distributor.
Posted on Oct 24, 2009
SOURCE: 2002 Ford Expedition Fuel pump
possible fuel pump shorting out problem, disconnect fuel pump wiring connector located around tank area under vehicle & turn key on again. if no more clicking from relay or theft warning stops. then change fuel pump, and check the short wiring harness to fuel pump for overheat signs.
Posted on Jan 15, 2011
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