Hadn't driven or started my beater in a month. Drove fine the last time with no issues. Today I finally jump started it. Took it around the block and noticed it was as far HOT as it'll go. Brought it back and parked it. Haven't checked anything yet. It sits on a bit of an angle with the nose elevated slightly. I'm thinking thermostat, coolant needs to be bled, or...? Timing belt/water pump was done approximately 3 years/20k miles ago. Any other ideas? Thanks!