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12-09-2022, 03:41 PM | #1 |
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Join Date: Mar 2015
Location: Greenville, SC
Posts: 1,099
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charging problem
Car was running fine with normal ammeter readings - new battery. Now after starting the ammeter is normal for about five seconds then drops to -20. No other parts were changed. There is power from the J box to the generator cut out. Car sat without driving for about 1 week. What could be wrong?
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12-09-2022, 03:57 PM | #2 |
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Join Date: May 2010
Location: on the Littlefield
Posts: 6,159
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Re: charging problem
What is the voltage?
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12-09-2022, 04:46 PM | #3 |
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Join Date: May 2010
Location: Largo Florida
Posts: 7,225
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Re: charging problem
Not enough info. 6v or 12v ? Generator or alternator ?
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12-09-2022, 05:04 PM | #4 |
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Join Date: Mar 2015
Location: Greenville, SC
Posts: 1,099
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Re: charging problem
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12-09-2022, 05:22 PM | #5 |
Senior Member
Join Date: Mar 2015
Location: Greenville, SC
Posts: 1,099
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Re: charging problem
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12-09-2022, 08:05 PM | #6 |
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Join Date: May 2010
Location: Bismarck ND
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Re: charging problem
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12-09-2022, 10:43 PM | #7 |
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Join Date: May 2010
Location: Between Seattle & Tacoma
Posts: 2,354
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Re: charging problem
Go buy a cheap volt ohm meter.
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12-13-2022, 04:50 PM | #8 | |
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Join Date: Mar 2015
Location: Greenville, SC
Posts: 1,099
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Re: charging problem
Quote:
and then goes to -15. Head lights and horn are disconnected. Can't get a good amp or voltage reading when this happens - battery showing 6.5 volts. |
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12-14-2022, 09:37 AM | #9 |
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Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,146
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Re: charging problem
Post #1 says engine running. #8 implies engine off. Main suspect is ammeter post has pushed through paint on tank wall.
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