Not cranking over issues jump the battery?

2012 JEEP PATRIOT

100,000 MILES

JAMESD79

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Yesterday my grandmother told me that her car wouldn't start and I went to jump off the battery and the car would start when I jumped it off, but whenever I took off the cables for my truck it would shut off once and then whenever I had it running I took off the positive power from the battery and the car stalled what might be the issue.

Nov 13, 2024 at 6:40 AM

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Please do not remove the positive cable from the battery while running, you can blow out computer modules. It sounds like the battery or alternator is bad. I would jump start the car again and then use a voltage meter at the battery to see if the alternator is charging. This guide can help, if the battery is charging that replace it with a new one and the problem should be fixed, here is a guide to help you:

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Here is how to change the battery out. Check out the images (below). Please let us know what happens.

Images (Click to enlarge)

Nov 13, 2024 at 8:56 AM