in these lincoln ls the thermostat housing is plastic.

What is your question?

now when these pieces fallapart, they have to clog up the coolant circulation. but where do they go. cause i replaced the thermostat housing and when i saw the worn out plastc, i said to myself this has to be the overheating problem. plastic pieces getting clogged in coolant system somewhere. but where cause i have no leak and my water pump and stuff r good.