Haunted '98 EB
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Cross-Country
Joined: Aug 2003
Posts: 57
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From: Barneyville USA
Haunted '98 EB
My wife has been saying that the truck is unlocked every time she comes out of work, and she's sure she locked it. Last night, as I was sitting in the garage, kicking back with a beer, and admiring my recently painted '79 bed, I noticed the Explorer in the next bay, making door locking noises every 5 or 10 mins or so. I checked the remote- normal. I locked the doors, and 5 mins later they opened by themselves. Then they would click every couple of minutes. I took a relay out of the box over the left rear wheelwell. That cured it, but the only door lock that works now is the driver's, and only from the inside switch. I'm kinda leaning toward a broken wire going into the drivers door, but I haven't had time to get near it yet. I remember seeing a post like this before, but can't find it now. I'd really appreciate it if anyone has any insight into this.. Thanx.....Bill....
Logistics Pro
Joined: Jul 2003
Posts: 3,595
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From: Lawton, Oklahoma
If you have a switch at the left rear quarter panel that allows you to work the locks from the tailgate area, it has been a common occurance for that switch to get contaminated with water and cause lock cycling. I would pull that switch and inspect it and the connector closely for contamination/shorting. Also some reports of water intrusion in the lock switches on the door locks of vehicles with alarm system have been known to cause lock cycling as well. Also I had a couple where a water leak caused pooling of water under the rear seat area where the wiring looms pass and into the wiring loom channels under the scuffplates and caused wiring shorts.
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Cross-Country
Joined: Aug 2003
Posts: 57
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From: Barneyville USA
Thank You, HomerWinzlow... I didn't think of a leak, but they design these door switches for maximum water exposure. Last year, we went roundy-round with my son's '98 F-150. Replaced GEM module, air bag module, 3 relays under dash, and mirror switch. Also had to re-seal windshield. I think I'm going to join FTE- I've freeloaded here long enough, and everything we own wears the Blue Oval. Thanx again...Bill...
Logistics Pro
Joined: Jul 2003
Posts: 3,595
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From: Lawton, Oklahoma
Yes, my 2000 Expedition had the windsheild resealed 3 times, 2 fuse boxes and 2 gem modules. They finally had to pull the windshield out and replace the seal completely to get the water leak stopped. Its been a problem for years.
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Joined: Sep 2004
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haunted door locks
I had the same problem with my '96 AWD and it turned out to be the switches on the door lock cylinders. You could try blasting the lock cylinders with contact cleaner and really working them with the key but the real fix is opening the door panels and just unplugging the switches. Do all three; front doors as well as the hatch and the ghost goes away! The switches are only there to allow you to unlock all the doors at once by cycling the key twice; a minimal feature at best.
Elder User
Joined: Mar 2004
Posts: 856
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From: Kansas City, Missouri
Moisture is probably the culprit but if that doesn't work, I have had this symptom when the battery had a weak cell or the voltage would periodically drop momentarily causing the locks to lock and unlock...mine could have just been a fluke though.
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hivoltj
1987 - 1996 F150 & Larger F-Series Trucks
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Mar 9, 2015 12:05 PM
