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GEM issues. (Voltage draw)
I have a 2000 Lariat 7.3 4x4 and in the last month I have developed a voltage draw.
I replaced one battery and the other is about a year old. They both show about 12.75 volts.
After pulling all the relays and fuses the #15 fuse turns off the test light and its the famous GEM module fuse.
Now Ive unplugged the cluster, the ABS, the windows, PCM, brake switch, and finally unplugging the GEM shuts the light off. Ive waited 40+ minutes and Ive measured a 1.8a draw afterward.
I dont use my truck often, (about once a week) and with the monster Denso starter I installed it needs all the amps I can give it.
Do you guys think its the GEM or is there something else you can suggest to me?