[danb21t]

Sounds like you got off easy, I would think about replacing the main stat soon anyway.

The egr straw ides is somewhat flawed though. This thermostat starts off open so that coolant can flow through the heat exchanger and warm up quicker. Once the temp is up the stat starts to close up and hands off to the main stat.

Best way to test the old egr stat is to run some boiling water through it, put it in a pan or in the oven. If moves then it's probably ok