Thank you for a detailed step by step help and I very much appreciate it. Like you said and as others have also chimed in, I will try out a ring type or eye terminal similar to the broken one. The gauge size is what I am debating between 12-10 AWG and 22-18 AWG and is it okay to replace with a larger size than the broken connector? Would it be fine to buy a similar size gauge wire ( gauge equal to the terminal connector) to crimp in case the length is too short. The length was another factor I was doubting and your pic on where the wire leads to helps a lot.Hi,
1. you may be able to buy a large enough "eye" crimp connector to fit over and crimp onto the existing broken one. Peel back and carefully cut away the shrink wrap to reveal the existing broken connector and shop for a connector that will fit over it. Buy a crimping tool, hacking this connection may lead to ground problems. I don't think the broken connector can be removed from the wire easily and without chewing up the wire itself.
fyi - If you cut the broken connector off the ground wire, there may not be enough length to reach the battery terminal. It looks like the connector and it's strain-relief(keeps wire rigid so it doesn't drape onto battery top edge-i think) is almost 2"
2. if you can't get a good connection with the 1st method, buy an identical eye connector as the broken one. Follow the wire down to the bottom corner of fuse box. The wire(harness) is held in place by a wire tie secured to the bottom edge of the fuse box.(pic) If you release or carefully cut the plastic wire tie(mine is grey), there may be sufficient additional slack in the harness to reach the battery terminal, then you can cut off the broken connector and crimp on a new one.
I have not done this repair, offering advice after looking at my negative battery connection and "eyeballing it".
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Yes I am going to get a ring terminal and try out crimping like @12ecofamilycar suggestedThat's what I would do