Re: 87 chevy 4.3 OT

Posted by Owen Aaland on July 13, 2007 at 06:04:28 from (65.165.246.40):

In Reply to: 87 chevy 4.3 OT posted by cat236 on July 13, 2007 at 02:32:41:

Fully charged battery voltage should be 12.6 volts after the surface charge has been drawn off. If the vehicle has just been run, turn the headlights on for five minutes and then test the voltage. If you are not close to 12.6 then your meter is probably off. If your meter is OK and you still have that high of alternator voltage you need to check the sensing wire going into the alternator. If that circut is open the alternator will go to full output all the time and your voltage will be too high but yet the alternator will bench test just fine.

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