I saw pink foam in my engine bay about 115k miles. Changed out the water pump. Not really that difficult but an annoying job and it caused some lower back and hamstring pain. The housing had some scarring in it. A couple months later, it was foaming again. Took it to a dealership figuring there some trick to get it sealed up. They replaced it and it was leaking again 2 days later. The next one they did seems to be sealed up. It's been 40k miles without issue.Water pumps are funny some last forever some well not so much. My failure was the oring to the housing since there pump was out
it got a new one.