Eurovan woes

After a 5809 mile driving trip, 4.5 miles from home the following happens:

1. seized A/C bearing (near Tahoe I believe)
2. slow wearing out of belt
3. snapped belt
4. water pump failure (and alternator and power steering)
5. overheat
6. popped heater core
7. $$

Question: does the Eurovan actually have a blow off valve for the cooling system?