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When the battery is very weak the gauges will often act this way. As the power supply drops below some specific threshold the sensors will glitch and act this way. If after recharging the battery everything is working okay then I do not think there is more of a problem that needs any attention. Does that help? Is that the info you were looking for?
Okay, I guess I was thinking the battery died from leaving lights on or something. If you have any kind of volt meter we can do a basic battery and alternator test. I would suspect one of them is going out. How old is the battery? I see alternators get lazy on these cars a lot. Another option is taking it to an autoparts store to have them load test the battery. Sometimes their battery and alternator tests are not as accurate as they should be but without some kind of test equipment this might be your best bet. It sounds like the battery is weak for sure. The question is if it is weak because it is old or because the alternator is not charging it properly.
Hello, just following up to see how things turned out? Please let me know if I can be of any further assistance, or, if you have found my advice helpful then please leave a positive rating for me.