2000 Ford Expedition Overheat
The bolts that hold on the upper rad hose intake are 10mm. This isn't really a how to, instead its more of a video giving you a general idea on the replacement. With the right tools, changing the thermostat takes about 5-10 minutes. Remember, when you introduce air into the system, you need to add coolant to the overflow bottle, add until it reaches the cool mark then drive it for a few minutes and then top off.
Thermostat replacement Ford Expedition
This is a simple fix to change the thermostat in a Ford Expedition
5.4 Triton thermostat R&R
Ford Expedition with flowmaster 40 series exhaust
2000 eddie baure ford expedition with a flowmaster 40 series muffler
2003 Ford Expedition Engine Guide
This is just some of the many components of a 2003 Ford Expedition's 5.4
liter Triton V8 Engine.