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#1 |
Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,610
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Re: Battery, alternator or something else
One more thing I noticed when trying to start it again when I got home was that when I was trying start it up it made a single click noise (like the one that happened when it would not start) once then started right up.
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#2 |
Senior Member
![]() Join Date: Mar 2016
Location: Sonora California
Posts: 281
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Re: Battery, alternator or something else
Electric is not my favorite subject, but I always heard that if your gauge reads negative voltage, it's a bad alternator because it is not charging the battery but if it shows excessive positive voltage, it's the battery because the alterneter is supplying all the power not the battery. It sounds correct to me but let's see what a better electrician has to say. I'm sure someone with more knowledge will chime in.
I don't know how I posted twice. |
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#3 |
Senior Member
![]() Join Date: Mar 2016
Location: Sonora California
Posts: 281
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Re: Battery, alternator or something else
Electric is not my favorite subject, but I always heard that if your gauge reads negative voltage, it's a bad alternator because it is not charging the battery but if it shows excessive positive voltage, it's the battery because the alterneter is supplying all the power not the battery. It sounds correct to me but let's see what a better electrician has to say. I'm sure someone with more knowledge will chime in.
I hate electrical issues. |
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#4 |
Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,610
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Re: Battery, alternator or something else
It sounds like you guys are feeling like it might be an alternator problem. I will remove it and get it tested. I hate trying to diagnose electrical over the computer also. It’s a power master one wire internally regulated alternator. Hopefully the local parts store can diagnose it. I will check back in with you guys if the alternator gets a clean bill of health.
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#5 |
Registered User
Join Date: Sep 2011
Location: N.C.
Posts: 143
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Re: Battery, alternator or something else
I hate electrical gremlins. Easy to first check with a volt meter at the battery while running. Should be around 14 volts I think if the alternator is working properly. Then check the wiring to the alternator and check directly at the alternator. I figured out that mine was bad that way.
Good luck! |
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#6 | |
Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,610
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Re: Battery, alternator or something else
Quote:
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#7 | |
Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 1,700
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Re: Battery, alternator or something else
Quote:
Based on what's happening now, I doubt the first battery was bad - just improperly tested.. A 30 minute "quick charge" will not build enough charge in a dead battery to give an accurate test.. 90% of the time, the battery will always test "bad".. A dead battery needs a slow charge for a few hours to bring it to full charge.. Never use the alternator to charge up a dead battery. Alternators aren't built to work like that. |
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#8 | |
Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,610
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Re: Battery, alternator or something else
Quote:
Don't worry I didn't try and use the alternators to charge a dead battery. It was the auto parts store that tried to charge the battery and then tested it on Sunday. So at 12.01 volts we are definitely thinking that it is a bad alternators? |
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