Usually it takes a bit more heat to kill these heads, luckily she knew to pull over and let it cool....If she just said hell and drove home, I would say the head is bad....but if it ran out of coolant do to the leak....It can be a possibility...

I am sure you know this but, blow the radiator out....use a high pressure nozzle and fire it threw the radiator from the fan out towards the front of the car...If there is ac condenser....and fan....stuff can build up between all them....wouldn't believe the crap that gets stuck in the radiator....mine on my euro looked clean and I have sprayed it out...but when I removed it and tapped it on the truck...enough small stones fell out to use in a betta bowl lol

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