electrical nightmare
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electrical nightmare
I have a 99f250 7.3. I was attempting to fix a 3 severed wires from my overdrive switch when I was done and turned the key on wierd things started happening. The windshield wipers came on for 1 swipe the gauges on the instrument cluster arn't working and every time you turn it on the auto door locks go up and down rapidly. The locks continue to do this while driving unless you have your foot on the accelerator then they stop until you take your foot off. My suspision is the GEM module but I don't know if this could cause the gauges not to work. If any one could help I would appreciate any input. thanks
Senior User
Joined: Mar 2008
Posts: 436
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From: Mass
when my overdrive wires chaffed they blew a fuse "can't tell you the fuse #" but when the fuse blew i lost all gauges.
fixed the wires, changed the fuse, all's good.
don't know if this helps you other than checkin to see if you changed your fuse after the wire repair?
fixed the wires, changed the fuse, all's good.
don't know if this helps you other than checkin to see if you changed your fuse after the wire repair?
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
I'm not quite sure how you did this either. Did you disconnect the batteries for any reason before this started happening? If so, double check the connections. I agree with checking the fuses for the instrument cluster, but don't have any clue on the locks acting crazy.
If fixing the OD wires was the last thing you did, then after checking the fuses, I'd unplug those wires to make sure they're not doing anything funny. If you follow the wires from the shift lever onto the column, there's a little plug you can disconnect to rule out your OD issues. Driving with this unplugged will just cause you to lose your OD off function.
If fixing the OD wires was the last thing you did, then after checking the fuses, I'd unplug those wires to make sure they're not doing anything funny. If you follow the wires from the shift lever onto the column, there's a little plug you can disconnect to rule out your OD issues. Driving with this unplugged will just cause you to lose your OD off function.
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I have checked all fuses under the dash as well as under the hood. I also disconnected the overdrive quick connect and the problems stilled ocurred. I disconnected the batteries touched the + and - together to get rid of stray voltage and had the charging system all tested as well as computer codes, all was good. While doing the original repair I did arc a wire on the steering column and when I was finished my batteries were dead ( maybe a result of the locks going crazy).
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Joined: Jan 2008
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From: Rochdale MA
Disconnect your batteries for an hour or so. This will allow the system to "die" and "relearn itself" If this doent' do it then I'm wondering if when the wires shorted out if it sent a spike to the GEM
Senior User
Joined: Mar 2008
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From: Mass
how did you "fix 3 severed wires from your overdrive switch". i mean as far as connecting them back together??
i no those wires are "very" thin.
is it possible there not connected to the right ones?????
i no those wires are "very" thin.
is it possible there not connected to the right ones?????
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I already tried disconnecting the batteries for over an hour it did not change anything. Have you ever heard of the GEM affecting the gauges? Is a GEM either bad or good? I priced them out at the dealer for $495 do you know of a better source? Is there a way to test the GEM? Thanks to everyone for their input.
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I just wire nutted the overdrive wires together for now, they are three different colors so I know they are right. I am still trying to figure out how to repair them permenantly because when I put the housing back on there is not room for the wire nuts and there is no slack in the wires.