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#1
08-10-2006, 10:31 PM
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2002 Silverado Brake Light Out & other electrical problems
2002 Silverado LS 4X4 Brake Light Out. Not Bulb.
The bulb lights up when headlights are on but during the day when the brakes are pressed, the right rear bulb does not light up. Also, this may or may not be related but... I have a new optima red top battery and new alternator and the battery is being drained constantly. If I do not start the truck the battery will be dead in about 3-4 days. Oh and ALSO, sometimes at night, ALL of my lights inside and outside kind of flicker. I have no idea if all of this is related, but I would appreciate any input. Thanks so much. Mike 
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#2
08-11-2006, 02:08 AM
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Re: 2002 Silverado Brake Light Out & other electrical problems
I just bought the same truck . Still OEM battery . I left my radar detector on for 2 days while it was sitting and the battery was dead . I thought that was strange for only two days . My lights also flicker at night ,but I think mine is due to the A/C compressor. I have only had it a month . Replaced a DRL bulb but still does not work . Wish I could help more . Rob
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2000 Trans Am six speed Blackbird .Fast enough stock! 2005 Grand Prix. 2005 2500HD Silverado 4x4 , Duramax!!!!!!! Lifted ,Pumped,Humped,Thumped! 1988 JEEP Cherokee: Lifted, Sons new toy.
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#3
08-11-2006, 08:57 AM
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Re: 2002 Silverado Brake Light Out & other electrical problems
The bulb has two filaments in it. One for the brakes, one for the nighttime running. If it lights up when the headlights are on, but not the brakes, then just that one filament is blown. Check the bulb, you can usually tell. If you don't want to go buy a new bulb without verifying, switch the left one, and see if it does the same thing.
Edit: For your other questions - #2 sounds like a short somewhere. Bugger to diagnose usually. #3 I'd guess a connection on the new alternatior or new battery is not quite tight.
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 2002 5.3l - Quadrasteer
    lose (lüz): v - to suffer deprivation of : part with especially in an unforeseen or accidental manner loose (lüs): adj - not rigidly fastened or securely attached Last edited by guumbah; 08-11-2006 at 09:25 PM.
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#5
08-14-2006, 01:32 AM
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Re: 2002 Silverado Brake Light Out & other electrical problems
After thinking about your battery drain , I noticed when I put my key in before turning that all the instrument panel needles moved to zero . That indicated that power was being applied just by adding the key . Do you by chance leave the key in it in a garage ? Rob
__________________
2000 Trans Am six speed Blackbird .Fast enough stock! 2005 Grand Prix. 2005 2500HD Silverado 4x4 , Duramax!!!!!!! Lifted ,Pumped,Humped,Thumped! 1988 JEEP Cherokee: Lifted, Sons new toy.
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#7
08-16-2006, 01:31 AM
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Re: 2002 Silverado Brake Light Out & other electrical problems
After reading this both of my DRL are not working( new bulbs) . Check your hood light switch to see if it stays lit when the hood is down . I had this happen on another car . Some of then have a metal ball in it that can stick to the contacts . Maybe disconnect it for a few days . Rob
__________________
2000 Trans Am six speed Blackbird .Fast enough stock! 2005 Grand Prix. 2005 2500HD Silverado 4x4 , Duramax!!!!!!! Lifted ,Pumped,Humped,Thumped! 1988 JEEP Cherokee: Lifted, Sons new toy.
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