Percolation? Heat soak? Don't drive during summer??

Think the coil is getting hot and shutting it down ,95percent sure that’s what was wrong with my daughters car only 30 or 40 $ and wouldn’t be bad to have a spare

I have the brand new one, and the old one... so maybe if I figure out why the coil is prematire igniting I can help keep it slightly cooler, it only does that weird thing when the car is in the on position and not cranking over.