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EMRSR
EMRSR, Master Certified Service Manager
Category: Ford
Satisfied Customers: 3010
Experience:  20 years with Ford, Master Certified
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How to install a new thermostat in a Ford Expedition 2003?

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How to install a new thermostat in a Ford Expedition 2003?
Which engine?
Customer: replied 7 years ago.
It is a 5.4 liter, V8 engine.

Here you go.

 

Service and Repair
Notes

Thermostat-4.6L and 5.4L (2V)

Removal and Installation

  1. Partially drain the engine cooling system.
  2. Disconnect the upper radiator hose from the water outlet adapter.

  1. Remove the power steering reservoir upper mounting bracket.

  1. Remove the bolts and remove the water outlet adapter.

  1. Remove the water thermostat and the O-ring seal.
    • Discard the O-ring seal.
  1. To install, reverse the removal procedure
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