1972 Chevy Blazer upgrading the electrical harness

1972 CHEVROLET BLAZER
10,000 MILES • V8 • 4WD • AUTOMATIC
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72CHEVYBLAZER
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  • 1 POST
i just installed a new harness from painless into my 72 blazer. i keep having the problem now of my battery draining and can't seem to find the problem. i've done a few different draw tests, yet nothing, unless i'm not getting the right info on how to do them right. any ideas?
Jan 15, 2010 at 1:37 AM
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JDL
  • ✓Experienced Mechanic
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Welcome to the forum, the older way to test for battery drain is to use a testlite, you take a battery cable loose, place the testlite between the end of the cable and the battery post, if the lite comes on, you have a battery drain. you pull fuses one at a time, till the lite goes out, whatever fuse circuit caused the lite to go out, is the problem circuit. Maybe a lite that stays on somewhere, best time to check, is in the dark.
Jan 15, 2010 at 2:54 AM
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