Q: Corrosion on starter terminals

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after parking in lot, I returned from a quick trip to the store to find my car would not start. I opened the hood to find positive terminal corroded and broken. I hooked up battery starter on the positive cables past the terminal and nothing changed. I used a voltage tester which showed proper current to start the car. The battery seemed to charge enough to get the dash lights to come on but still not making a sound to start the car. I plan on replacing the battery and both terminals today. I am wondering if something else could be preventing it from starting.

My car has 138000 miles.
My car has an automatic transmission.

Corrosion on the terminals will definitely impact the flow of current to the starter. The other potential issue may be a faulty connection to the starter relay. If the starter relay is faulty or not receiving the proper current, it may also cause the car not to start. I would suggest also testing the starter relay for proper current.

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