Leaking Coolant / Broken Pulleys /etc

That's a good call on the potential radiator damage. I can add another piece to the puzzle now. It seems that when I lose the coolant I seem to lose it all at once. Over the past week I checked the coolant after short drives <10 miles and the level would not change. When I drove it for longer, allowing the engine to heat up a little more (30min-hot temps), that's when I lost the coolant. I'm guessing that maybe the pressure valve is not sealing well? I need to check under the hood after one of these longer drives and see where the coolant is leaking I guess. If I can't figure it out then I think the pressure test is in order. Would there be another explanation for the loss of coolant all at once other than the pressure cap? I guess I would think that other 'leaks' would cause a steady loss rather than all at once. Thanks a bunch. That's a good call on the potential radiator damage. I can add another piece to the puzzle now. It seems that when I lose the coolant I seem to lose it all at once. Over the past week I checked the coolant after short drives <10 miles and the level would not change. When I drove it for longer, allowing the engine to heat up a little more (30min-hot temps), that's when I lost the coolant. I'm guessing that maybe the pressure valve is not sealing well? I need to check under the hood after one of these longer drives and see where the coolant is leaking I guess. If I can't figure it out then I think the pressure test is in order. Would there be another explanation for the loss of coolant all at once other than the pressure cap? I guess I would think that other 'leaks' would cause a steady loss rather than all at once. Thanks a bunch.