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Old 02-05-2008, 04:06 PM
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major electrical problems

99 p/s 7.3. sound in dash like mice eating popcorn . interior lights stay on key in lock chime rings when door open w/o key in ignition, radio came on today w/o key in ignition, airbag light stays on , cruise stopped working today . dash noise happens when truck is not running and key is out. heater still operating when power is off. Any guesses, I'm wondering is it the ignition switch not cutting power ?


Thanks del
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Old 02-05-2008, 04:15 PM
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Did you check for mice?

Have you done ANY electrical work?
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Old 02-05-2008, 04:30 PM
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no, the mice noise is more like a clicking noise, hard to describe , after the airbag light first came on , I replaced the clockspring and steering bushing and bearing since they were both worn . I think I have some issues in my steering column . The bearing and bushing are about the size of a wedding ring, the dealer thought they should have been about 1 1/2' in diameter. However the noise sounds like it is coming from under the dash just north of the fusebox

Thanks for the reply, Del
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Old 02-05-2008, 04:33 PM
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Sounds like a short in the column.
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Old 02-05-2008, 04:37 PM
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yep, sounds like a short, maybe a horrible ground too....look for blackened wires...or just look under the dash in the complete dark, look for the little blue sparks!
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Old 02-05-2008, 04:38 PM
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Yeah I,m thinking the ignition switch not switching off completely, but how do you replace it ? I tried pushing a punch up into yhe hole , to no avail. Also I wonder if like you said ther is a wire shorting in the steering column , the wheel has a lot of play up and down side to side
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Old 02-05-2008, 04:39 PM
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thanks, I'm going out right now to do just that
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Old 02-05-2008, 04:51 PM
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okay, no blue sparks just the chiming of the door open when I open the door w/o key in ignition , stops when I close door

Thanks Del
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Old 02-05-2008, 04:57 PM
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still ticking and weird though?


not sure about the switch on the superduties, but sometimes you pull the column and there is a little "button" there that you depress to pop the cylinder and switch out......but agian, no idea on the superduty, I havent had to mess with it yet.
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Old 02-05-2008, 05:47 PM
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im pretty sure the GEM module controls all these, you might start there
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