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clicking/wait to start light problem

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Old Aug 15, 2012 | 01:18 PM
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clicking/wait to start light problem

so just recently when I turn key to on position there is a fast repetative clicking coming from behind the dash and my "wait to start light" wont come on. I sat at the gas station yesterday for 10 mins and finally after cycling the key on and off I got lucky and the clicking stopped and wait to start light came on then the truck started. This morning same thing.......clicking finally stopped, light came on, I waited for light to go out and it fired right up. HELP???
 
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Old Aug 15, 2012 | 01:24 PM
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oh and FYI while the truck is clicking the needles on my gauges are jumping around
 
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Old Aug 15, 2012 | 02:34 PM
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Have you checked your Batteries? Sounds like a voltage problem to me.
 
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Old Aug 15, 2012 | 02:45 PM
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ive been researching and Im gonna check batteries next
 
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Old Aug 15, 2012 | 03:01 PM
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Have the battery "LOAD TESTED" with it disconnected from the vehicle, but with a FULL CHARGE.
 
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Old Aug 15, 2012 | 03:57 PM
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batteries tested at a little over 12 volts each so they are good. I found the clicking to be coming from underhood fuse relay #4........not sure what it does but I replaced it and now there is no more clicking and truck starting fine so seems like that problem resolved. NEXT issue is that my Alternator is only 3 months old but it putting out 15.8 volts to both batteries!. I have recently been having a flashing OD button problem and code said P0720 which was OSS sensor, I replaced that and still same problem, I read that a bad alternator can have interference with the tranny sensors causing problems such as mine.....maybe my alternator is my issue on that. Opinions?
 
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