1994 Ford Explorer - Shorts the electrical system when the key is turned
This problem does not happen all the time, but seems to becoming more and more common. When I turn the key, I hear the unmistakable click of a dead battery and lose all power, clock resets etc. If I take out the key and try again, 9 out of 10 times, the engine starts right up (the battery is new). Since I bought the truck three years ago, the key chime would always go off when ever the door was opened, whether the key was in the ignition or not. Also, the ignition lock spins completely around when no key is inserted, however the engine will not start unless the key is in the ignition. I only drive this truck a few thousand miles a year, so I am afraid of the expense of having an electrical problem diagnosed. Any help would be greatly appreciated!
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This is common, if the wheel was turning at the time of the key being turn off it will put preasure on the wheel lock pin, this causes the lock to be diffuclt to turn, what happens is the steering wheel has a plate inside column, this plate has a lot of slots going around it, so when you turn the key off a pin comes up and goes into one of the slots that algin over it and if the wheel turns back the slot hits the pin with enough force to hold it, so when you turnn the key the linkage pulls the pin down bbut if its held the pin wont move and key wont turn unless you move the wheel which in turn moves the lock wheel away from pin, nothing is wrong its just something that happens,hope this helps.
look at the steering column below the ign lock and tumbler there should be a small hole turn key to on pos and push a small rod up the holethis then should release the lock and tumbler,no hole then wheel and coumn has to be stripped to get to lock retainer
As funny as it may sound in alot of instances it must be reset. try turning the key on and off about 60 -70 times. seems rough on the starter but has worked for me in the past. not sure if it works on fords but works well on all mopars.
the transmission is loseing internal fluid pressure, its time for a rebuilt transmission. The A4ld that your explorer has is prone to trouble in this area. A good rebuilt transmission may cost at least $1700 dollars.
I would check to see if there is a short on the fan controller switch and the motor. sounds like a crossed wire, especially if it's ignoring your speed selection and running when the key is out. could be near the fuse box under the dash. the cig lighter circuit is live all the time as well as a couple others, it maybe crossing with it. I would pull the fuse panels assem down and check for crosses and shorts.