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A clicking noise usually indicates a bad battery. I'm going to walk you through some simple steps. Follow them in the order I provide.
First, we need to do a simple load test on the battery. Follow this link.
https://www.2carpros.com/articles/car-battery-load-test
Now if the battery passes that test, the next thing I need you to do is confirm the battery cables are clean and tight. The starter places a heavy load on the battery, and even though it passes a load test, a weak connection can cause it to fail.
Here is a link that explains how to clean and tighten and the symptoms related to them being in poor condition:
https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked
Once we are sure the battery is good, fully charged, the terminals are clean and tight, and so on, if the starter still only clicks, make sure the main ground between the battery to the engine block is clean and tight, free of corrosion.
I have to be honest, based in your description, I think the battery is bad. If you could, I would remove it and have it load tested at a parts store. They can tell exactly how many cranking amps the battery has left in it and if it needs replaced. The aforementioned test will help if the battery is very weak. Here is a link that explains how to replace one. I am providing them in case you decide to remove it to have it checked.
https://www.2carpros.com/articles/how-to-replace-a-car-battery
Try these things and let me know what you find. Please feel free to ask questions or let me know if you need help.
Joe
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Wednesday, June 12th, 2019 AT 9:22 PM