Hi,
If you can jump-start it, check to make sure the battery terminals are clean and tight. When you place the jumper on it, there is a chance it is tightening things enough to make a good contact.
When you connect the jumper cables, there is still only 12 volts available, so something you are doing is creating a better connection.
Let me know. Also, let me know if you hear anything without the jumpers. For example, do you hear a click or anything?
Take a look at this link:
https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked
Also, let me know if this happens every time you need to start the vehicle.
Take care,
joe
Apr 29, 2023 at 12:08 AM
