Why is your 2003 Buick Park Avenue running hot?

Your 2003 Buick Park Avenue may be running hot due to several potential issues. Common causes include a failing thermostat, a malfunctioning water pump, or a clogged radiator that restricts coolant flow. Additionally, low coolant levels or a leak in the cooling system can lead to overheating. It's important to diagnose the exact cause to prevent engine damage.