1967 Ford Bronco battery drain

Tiny
TEDBRONCO
  • MEMBER
  • 1967 FORD BRONCO
Electrical problem
1967 Ford Bronco V8 Four Wheel Drive Automatic 99999+ miles

My battery is draining on a rebuilt bronco with a new wiring harness. Unfortunately installed before I got bronco, harness manufacturer will not provide circuit diagram, has lots of add ons so not all circuits are thru fuse box.

but the battery drain test is weird. On disconnected positive. Test light blinks bright once and goes out but on another test it intermitantly will keep blinking. On negative battery disconnect Test light blinks dim and goes out and stays out. When run continuity test on negative disconnect number constantly climbs. On volt test on negative disconnect looks like a steady.5 volt draw. Any suggestions on where to look?
Sunday, January 27th, 2008 AT 4:50 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Disconnect all the wires behind the alternator-make sure its isolated from ground do you still have the draw?
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Monday, January 28th, 2008 AT 9:03 PM

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