Are your jumper cables heavy duty? Is it below zero where you are? Did you try to bump up the rpms on the other car while starting? If the starter is new, the key is engaging the solinoid, all wires and connections are good from the battery, and battery terminals are clean and tight I would say battery. If you are careful and know what you are doing you could try jumping hot at the starter that would eliminate the possibility of a bad wire or connection.
Yep, heavy duty jumpers I made from 2 ga welding cable.
I’m wondering if it’s a bad ground. It’s been leaking coolant for quite a while based on all the build up and the main motor ground is right under the leaky housing. I thought of a hot start, likely try that tomorrow just to see what happens. Otherwise, I’ll replace all the grounds to see if that makes the difference. They’re original and cleaned them up a few times before for other issues, due to be changed I suppose.
Appreciate the additional perspective, I’ll keep you posted as I sort it out. And yes, it’s below freezing here - really wishing for that heated garage now.
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