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    Hum? My 1997 Expo's starter engages by itself

    Carmelo [Jayhue], Did you try it yet with fuse 20 back in the mix? I suspect it will work just fine but I recommend that you save up some cash toward the new GEM as it seems to fix a lot of issues that the factory (current) one has. Also, what is the status of the windshield replacement...
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    Hum? My 1997 Expo's starter engages by itself

    I was thinking the same thing. Back feeding is a pita and should never happen. I mailed carmelo a diode.
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    Hum? My 1997 Expo's starter engages by itself

    So, did you test drive it yet? What happens if you put fuse 20 back in?
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    Hum? My 1997 Expo's starter engages by itself

    Also, you may want to invest in a set of these: 1997 Expedition Shop Manual Set - Helm Incorporated This will help you to figure out any issues with your Expedition.
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    Hum? My 1997 Expo's starter engages by itself

    I am hopelessly confused as well. If the GEM module has no power and everything works, then what exactly does that sucker do? It has a huge number of pins on the harness, so I would expect that carmelo would have major issues without it. I just wonder what fuse 20 actually does. Is it really...
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    Hum? My 1997 Expo's starter engages by itself

    I found this which I think is interesting: 1997 1998 Expedition Navigator 4x4 Genuine Ford GEM Module Do your windshield wipers, lights and 4WD still work without it?
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    Hum? My 1997 Expo's starter engages by itself

    Will it start without fuse 20 in there? Also, if you pop it back in, does it still try to start in just the run position?
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    Hum? My 1997 Expo's starter engages by itself

    What does that mean? I don't understand. Are you saying that the vehicle will not start without fuse 20? I think you said it did before.
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    Hum? My 1997 Expo's starter engages by itself

    Ok, so all appears to be back to normal. Can you confirm? If so, make a permanent connection with a butt connector between the spliced ends of the R/LBL wire. Then pop back in your alarm brain. This will allow the doors to lock/unlock from the remote again.
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    Hum? My 1997 Expo's starter engages by itself

    What about the 3rd and 4th times? Also, how about the interior lamps and door chime being freaked out? Is all of that gone? Once started, did it try to start itself again while it was already running?
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    Hum? My 1997 Expo's starter engages by itself

    Yes. Reconnect the cut R/LBL wire and see if everything is working again. I suspect running the heater on it has dried out everything and fixed the issue. If it does, the next step will be to figure out where the leak is and get that fixed.
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    Hum? My 1997 Expo's starter engages by itself

    The odd thing is that the schematic for the starter does not show the GEM module at all - see attached pic. I think that trying to dry it out by starting the vehicle as you described and running a fan under the dash. If you leave it running for an hour or 2 on max heat, it should dry things out...

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