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76 911S Targa
 
Join Date: Oct 2010
Location: Idaho
Posts: 1,104
If you have a voltmeter, diagnose the problem by testing the battery voltage with the engine running. Should be about 14 volts if the alternator is working. If it is not charging, likely your 40 year old alternator needs repair.
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76 911S, 2.7, Bursch Thermal Reactor Replacements, Smog Pump Removed, Magnecors, Silicone Valve Cover Gaskets, 11 Blade Fan, Trombone Oil Cooler, Turbo Tie Rods.
Old 10-06-2018, 06:43 AM
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