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Alternator troubleshooting...
Car is a 1967 911E with an S engine and the alt. light keeps going on and battery won't hold a charge. Is this automatically a bad alt. or volt. regulator? Or how I can make sure it isn't a bad battery cell? Thanks.
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2022 BMW 530i 2021 MB GLA250 2020 BMW R1250GS |
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03-02-2004, 07:10 AM
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Moderator
Join Date: Dec 2001
Posts: 9,569
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Put your voltmeter on the battery terminals with the engine running. If it's less than about 13.5 volts, you have a bad charging circuit, either VR or alt.
A bad battery cell will show up as a really low voltage with the engine off. Suppose you have six cells, 2V each. One bad =10V, right?
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'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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03-02-2004, 07:34 AM
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