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Hello and welcome! My name is ***** ***** I can assist you with your question. Does it click once or multiple times when trying to start the engine?
The clicking multiple times is going to be low voltage or a bad connection. It could even be a bad ground as well. I want you to start by checking the MAIN fuses under the hood for voltage. If voltage is low, work your way back to the battery. If the battery is in fact good, then you could have a bad connection at or just after the battery.
The power distribution center or fuse block could be an issue too. You will need to check for battery voltage going into it on the MAIN black wire. This wire comes directly from the battery. Oh, and keep in mind, there is also a fusible link after the battery before the fuse block. Here is a wiring diagram.
YES, thats the correct wiring diagram and YES, you can swap relays but I dont believe it will help. All your looking for in the diagram is the wire from the battery positive post to the fuse block. It's right on top of the diagram
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Before going through all of this, check the battery voltage with the engine running. If it is 13.5 or higher, then the alternator is charging just fine.
I think it would be best to speak on the phone.