1997 Windstar High Temp

I was getting ready to change the thermostat last night, when I realized that the hose coming from the overflow was disconnected from the radiator neck. I put a new clamp on it and drove it to work this morning, but it still started to get hot, but toward the end of the drive it got better. I know there was a lot of coolant in the reserve tank, so I think there was little in the radiator. I siphoned some out last night and put it into the radiator, but maybe not enough. The guys at the auto parts store said that it will suck it out of the tank after I shut the engine off. I will have to check later today to see if it has done that. I guess I will update once I check. If coolant seems okay, I might change the thermostat anyway, it's a $10 part. I'll update later!

Update. When I went to leave work, I noticed that the reserve tank was still pretty full. It didn't pull from the reserve, so I stopped at a gas station close by and bought some 50/50 coolant and filled up the radiator. For how much I had to put in, I would guess that I was pretty low. It has been running MUCH cooler. When I get a chance in the next week or so I plan to drain and flush the radiator and then refill the system. That way I know what is in there and that all the amounts are correct. I might also replace the radiator cap since I have read in a few places that might cause the coolant to stay in the reserve. None the less. It will get me by until I get a new car this fall. Thanks. Have a great day!