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1970 Ford F-250 charging system

Tiny
MAXWELLPDOG
  • MEMBER
  • 1970 FORD F-250
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
When truck is running and you unhook the positive battery cable should the truck keep running?
Tuesday, April 7th, 2015 AT 3:12 PM

2 Replies

Tiny
CATAFINA
  • MECHANIC
  • 168 POSTS
Do it the right way-disconnect the negative cable if it dies out further check the alternator or replace it
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Tuesday, April 7th, 2015 AT 3:34 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You will get away with that test on a truck as old as yours but don't ever try that trick on a newer vehicle. You can fry multiple modules.
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Tuesday, April 7th, 2015 AT 4:14 PM

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