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Old 06-25-2022, 07:55 PM   #11
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Originally Posted by XoXSciFiGuy View Post
You know...I saw a post back there by the author saying his alternator passed the test at the auto parts store.

Maybe it IS the belt. The easy test is to push down with light to medium force on the center point of the belt, the point farthest from any pulleys...and see if it goes down NO MORE than 1/2 inch. If it goes down more than that, it is probably loose. Try adjusting up the belt a little tighter first. Or just replace the thing if it is loose.


I replaced all the belts last year, and the maybe 5K on it. Not to mention I removed the alternator twice to get it tested. So I know the belt is tight and good.
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Old 06-25-2022, 07:59 PM   #12
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Thoughts alabama lowlife???
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Old 06-25-2022, 08:59 PM   #13
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You have a voltmeter.

But do you have Facebook?

https://www.facebook.com/groups/3608...61499890219377
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Old 06-26-2022, 01:16 AM   #14
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You have a voltmeter.

But do you have Facebook?

https://www.facebook.com/groups/3608...61499890219377
It's all in my first post
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Old 06-26-2022, 01:26 AM   #15
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It's all in my first post
Then replace the alternator with a new one.
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Old 06-26-2022, 04:07 AM   #16
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You have a voltmeter.

But do you have Facebook?

https://www.facebook.com/groups/3608...61499890219377
Is the FB group affiliated with this page, or is the name just coincidence??

Last edited by bodydub; 06-26-2022 at 04:14 AM.
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Old 06-26-2022, 07:59 AM   #17
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Is the FB group affiliated with this page, or is the name just coincidence??
No they are the same organization. Some folks prefer the Facebook page, others the forum here. Some both.
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Old 07-07-2022, 01:14 AM   #18
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SOLVED!!! Voltage was 13.9 with no electronics on and truck on. But, voltage was fluctuating from 11-12 with headlights, A/C fan on high and radio on. Voltage did not rise/change when RPM was raised with the same components on. I just installed a rebuilt (yeah I know) alternator today from O'Reillys. Volts did not drop below 13 with same components on, and rose to high 13s when RPM raised. Remember, alternator "tested" good, twice at auto parts store. But that was under NO LOAD. My guess is that the bench tester only tests for functionality, not under any sort of load.
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