This car has been overheating, and bubbling out of reservoir. I changed the thermostat today and same problem remains. I also noted the fan will not run. Having hard time finding out why it won't run. To get back to bubbling overflow tank temp gauge will read normal and hot. Doesn't seem to matter what gauge says it still will do it. The fan fuse in car I changed it was blown still no fan, check fuse under hood it was fine. Help.