Thank you all for the suggestions. I have been gone but ready to keep looking into this issue tomorrow and through the weekend.
I had ordered the Workshop Manual and Wiring Diagrams books for the 2006 Expedition, and they arrived while I was away. Lots of good stuff to dig into. While looking...
Thanks. I will be able to get back to this later this week so I'll report what I find.
Is anything required to replace the GEM module, e.g. matching or programming the new module to the original, etc., or is it a simple swap?
DAY 2 UPDATE
The vehicle sat for about 24 hours, mainly because I had other things to do before I could get back to it. The first thing I did before cranking it up was to put a digital multimeter (DMM) in series with the negative cable at the battery and monitored the amps per a TSB I had read...
Thanks for the suggestions. I was due for a new battery so I replaced it after my original post, hoping that may have been the issue. The voltage was decent but it's been scorching hot here in Florida the past month so I wondered if it might have had a bad cell that was causing the issue. No...
I realize electrical issues on a vehicle can be hard to narrow down, but here's hoping some direction can be provided on where to look. I am an engineer and experienced troubleshooting electrical issues, as long as I have good information and schematics to follow.
Our 2006 Expedition recently...
Funny twist... Yesterday when I turned around to retrieve the parts that had fallen off my vehicle I found the cowling and mirror in the road within a few feet of each other. I picked up the pieces, threw them in my vehicle and went on my way.
It dawned on me just today that perhaps I picked...
Yesterday another vehicle swerved into my lane and their mirror whacked my driver's side mirror. By the time I u-turned back to where it happened the other driver had disappeared. I picked up the pieces that had fallen off and went on my way.
The two pieces I recovered were the mirror and a...
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