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Old Sep 25, 2004 | 10:25 AM
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wantadrive
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elecrical short

1989 bronco 5.0 Has anybody delt with an electrical drain? Battery good, Alternator charges add the positive lead to battery over a period of 6-10 hours it will drain the battery any advice where to start? any help on wiring harness?
 

Last edited by wantadrive; Sep 25, 2004 at 10:27 AM.
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Old Sep 25, 2004 | 04:30 PM
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BOJOFASO
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you need to get a test light and hook it between the positive cable and the battery post. the light should be lit if you have a drain. now you need to pull the fuses one at a time until the light goes out. when the light goes out you will know what circut is draining your battery.if the light doesnt go out then you may have a relay stuck like maybe your fuel pump. when you have the battery hooked up have you heard your fuel pump stay running? this would drain your battery in the 6 to 10 hours your talking about.
 
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