Generic Electric Module... how do I replace it..

[trekbkr03]

Ok... so heres how the story goes. I have a 99 Ford F-250 Crew Cab Super Duty with a 7.3L. I have had some electrical issues with it. I replaced my ignition switch and that fixed most everything EXCEPT my power door locks. I went today and had them hook it up to a monitor system which interfaced with the GEM module and it said that the relays were working fine but for some reason a signal was being sent to not let the power door locks work. I pulled the cover back off tonight to try to locate the GEM & I wasnt really for sure where it was at? I have a diagram and it looks like it is behind the fuse panel maybe? Apparently it is a part that only ford carries as well... anybody got any suggestions as to what to try? If you hit the lock unlock button you can hear it click on the relay and all of that seems to be working fine.. I just think this GEM module has gone out.. any suggestions?

[mschn99]

the gem is bolted to the back of the inside fuse panel...you have to take it out as an assembly to replace it....

[trekbkr03]

any guesses on cost of that?? Pretty worried since it comes from a ford dealership!

[vnvjames]

A Ford Dealer in another state told me I needed to change my GEM Module, I had them order one and paid up front for it {over 400.00} when it came in they told me they couldn't change it for a week. I came on home, went to the local Ford dealer and they told me to have my windshield resealed before they would change it. I went ahead and had a new windshield put in and never had another problem with the module. You may want to check that route first, my truck is a 2000 but I understand 99 thru 2001 had a problem with factory windshields leaking on the module. If you still ned a module check if 99 and 2000 use the same module and I will sale you my new module for half price being I won't use it.

[pipelayerjdh]

Would a bad GEM cause High beam problems? In our '98.5 SD the high beams only work when they feel like it. Bulbs and fuses are OK, but I can't figure this one out. Also, the interrior light stays on after the engine is cranked sometimes, and the dad-burn-dinger stays on when the door is open and the key out.

[vnvjames]

I don't know. The problem I had was my windshield was leaking on the Module and the horn would blow on it's own, my tach would go crazy, my spedo would go crazy, my overdrive light would go on and off, and my fan motor would run with the motor turned off. As soon as it dried up ever thing was ok.

[vnvjames]

MARC--after changing out the GEM, do I have to have any thing recalibrated ?