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BIG PROBLEM!

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Old Dec 30, 2012 | 09:55 AM
  #1  
Tanker78's Avatar
Tanker78
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From: in VT
BIG PROBLEM!

I am having an issue with my lights or my charging system. When i turn my lights on only the head lights come on. No dash lights, No marker or park lights. and when ever i run the lights it kills the battries. I've changed the headlight switch and relays. I've checked the wiring and everything is tight. Battries are good and altanator is charging. I can't figure it out. If anyone has any ideas please let me know. It's a '99 F350 Diesel 7.3
 
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Old Dec 30, 2012 | 09:22 PM
  #2  
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fuelman
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Joined: Dec 2004
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From: Toulon,Il.
Look at your taillights actually take them out and check the circuitry and see if it is corroded or shorted. Check fuses for marker side. Use the search option at the top of the page. Click the arrow next to search and in drop window click advance search. the type in keyword "marker light" the choose this forum in that section of the search options. BTW welcome to FTE great info and answers here!!
 
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Old Dec 30, 2012 | 09:25 PM
  #3  
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fuelman
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From: Toulon,Il.
Also if you have tow package wiring check all the connectors at the rear for damage or shorting.
 
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Old Dec 30, 2012 | 09:46 PM
  #4  
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racer280465
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In my experience, something that major and seemingly random usually comes down to a bad earth somewhere, and usually somewhere seemingly unconnected. Sorry can't be more specific. Try disconnecting light holders in turn, hopefuly that will help you isolate where it might be in the cirtcutry.
 
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