Why would an 2003 dodge intrepid run hot every 2 blocks with 120,000 miles

Most likely a bad thermostat, low coolant level, broken fan belt, blown head gasket bad cooling fan or electrical controls for it, coolant leak or bad water pump.There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online