Battery light
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#2
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Two possibilities come to mind. I have experienced both. First, clean and polish the battery and cable terminals bright and tight. Second with a helper watching and the engine running move the cable ends around and check for the light coming on. The cable ends are known for inner corrosion.
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Join Date: May 2008
Location: Great Mills, MD
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jrdelohery, I want you to try something for me. Let the car sit for a few hours. YOu want the motor down at ambient temp. Now, start up the car and turn on everything electric (dash fan on high, A/C on lowest temp, seat heaters on, headlights on, rear defrost on). Let the car idle for say 5 minutes. You can leave the car running or turn it off, up to you. But, immediately open up the hood of your car and remove the cover off of the battery. Now, cup your hand over (DO NOT TOUCH!!!!!) the battery posts. Do they feel about the same temp as the rest of the parts under the hood of the car or is one of them hot enough to cook an egg on it? The one that is really hot is your problem. May be the positive cable, may be the negative cable. But, this cable will need to be replaced. Takes about a half hour to replace once you get a new cable. If you have a second car, then you can remove the bad cable, take it to your local auto parts store and they can match up one they have in stock to what you have in your hands. Replace and you should be golden.
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Two possibilities come to mind. I have experienced both. First, clean and polish the battery and cable terminals bright and tight. Second with a helper watching and the engine running move the cable ends around and check for the light coming on. The cable ends are known for inner corrosion.
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jrdelohery, the voltage in this car will jump around some. What you are seeing I would not call it abnormal. I have seen very few alternators fail in the X-Type that were true alternator failures. Most people replace their alternators only to find that they still have the same issue. I bet you will find that Jag82 and myself will prove that you have a battery cable that is failing and that is causing your issues. Do as I recommended and see what it reveals. It is free and only takes a little bit of your time.
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Yorta2 (07-23-2020)
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