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Robnxious |
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RobnxiousOne ![]() ![]() Group: Members Posts: 184 Joined: 26-October 06 From: Sacramento Member No.: 7,097 Region Association: Northern California ![]() |
I have tried digging in on this a bit on here searching, and have seen posts saying "make sure it's the alternator before replacing". Here is what I have found so far. When the battery has a full charge, the volt reading is 12.75, and when it's running, it's about 13.5 (I remember reading on here last night that the running voltage should be about 14.5 IIRC). Which tells me it SHOULD be the alternator (that and the fact that if I run it with lights on at night, it needs charging when I get home). Also, my battery charger has an alternator check function and it said it was bad.
But, I also did the old shade tree mechanic trick of disconnecting the negative battery connection when the car was running, and it didn't miss a beat, still idled strong. I do have an alternator that I bought (yeah I know, didn't see the threads saying "make sure it's the alternator before buying" until after I had ordered it), but seeing how this is a PITA job the first time, I am hoping I can get my new baby up and running easily. Any help is appreciated, and thanks in advance |
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larryM |
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emoze ![]() ![]() ![]() Group: Members Posts: 891 Joined: 1-January 03 From: mid- California Member No.: 65 Region Association: Northern California ![]() ![]() |
When the battery has a full charge, the volt reading is 12.75, and when it's running, it's about 13.5 (I remember reading on here last night that the running voltage should be about 14.5 IIRC). if I run it with lights on at night, it needs charging when I get home). I also did the old shade tree mechanic trick of disconnecting the negative battery connection when the car was running, normal alternator output is 13.8-14.2v - that would generally be tested "off-idle" normal alternator output how to test alternator on-car alternator test what is your volt reading when running with lights on? - likely less if it won't recharge the batt BAD idea to disconnect alternator with engine running see alternator woes - google |
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