How do I change my thermostat for a 1999 ford expedition?

1999 FORD EXPEDITION
171,682 MILES • V8
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how do i change my thermostat for a 1999 ford expedition v8 eddie baur
Dec 26, 2010 at 3:37 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
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It is under the PS pump reservoir. Remove the resevoir, remove its mounting bracket, remove the thermostat housing bolts and housing, pull the t-stat out, clean all old gasket materials, replace the o-ring, and replace the t-stat. NOTE: Make sure the air valve on the t-stat is in the 3 oclock position. I have attached pictures of the air valve and the location of the t-stat.
Jun 28, 2021 at 5:08 PM
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