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1989 Ford Ranger battery drainage

Tiny
SIMPLEME
  • MEMBER
  • 1989 FORD RANGER
  • 6 CYL
  • 2WD
  • MANUAL
  • 189,000 MILES
Something drains all the power from the battery right away when I turn the ignition to start my truck. I checked everything I could and found nothing touching or not grounded. But I also found a 5amp fuse that was good but getting no power to it, it is the instrument panel & lighter fuse. What can be draining the battery like that? I have no credit card, send me ur mailing add. & I will mail in a donation regaurdless
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Monday, October 18th, 2010 AT 3:02 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I'd use a digital multimeter and make sure the battery has a full charge. If the battery is down, you can't do any testing. If the battery is down, get it recharged. Check charging system. After that, I can help you check for drain. Without a fully charged battery, your spinning your wheels, can't check anything.
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Monday, October 18th, 2010 AT 3:10 PM
Tiny
SIMPLEME
  • MEMBER
  • 2 POSTS
Ok
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Monday, October 18th, 2010 AT 5:57 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If there is excessive amp draw, you pull the fuses, one at a time, till the excess draw is gone. An older way is to take battery cable loose, use testlite between battery cable end and battery post. If the lite comes on bright, there is a drain, you pull fuses one at a time, when you pull the fuse on the affected circuit, the lite goes out.
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Tuesday, October 19th, 2010 AT 9:38 AM

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