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linus24 -> RE: 01 Expedition Kelsey Hayes ABS malfunction due to supposed windshield leak (6/6/2008 4:45:29 PM)
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It''s been a few months since the last post here, so let me know if you already solved it but... The GEM may be getting wet due to a leak in the door hinge, possibly the windshield. My experience: Some time ago (months), I had some strange issues with my 2000 F150 Lariat. These include wipers coming on with the switch off, radio not working, relay action with the key off, 4X4 light flashing, etc... I removed the GEM+fuse box assy and looked for any visible damage. None found. (Dry by then) Then this week, my truck was parked in the driveway during heavy rain overnight. It would not start in the morning and there was a little water on the floor (dampness on a small spot in the carpet). That evening, I removed the GEM and blew it out with compressed air, reinstalled it and the truck started. Then, I hosed down the windshield and hood for 5+ mins to simulate the heavy rain and found a leak that was possibly from the seal on the door hinge. My best guess is that water dribbled down the harnesses and seeped into the GEM. I have not ruled out the windshield yet. Now I will reseal the door hinges and inspect the windshield seal. This is time consuming, but you can also pay someone else to do it. I think this will solve the problem. Also check the ports that are available to run wires through the firewall, they could be open. Do not mess with the GEM or any other electronics with the battery connected. . .
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