2015 Ford F150 Very Noisy Fan Cause & Fix

Many Ford F150s around and including the 2015 model have insanely loud cooling fan noise that begins as soon as you turn the ignition on and stops only when you turn the truck off. Here's a possible solution that worked for me and I'm betting will solve the problem for many of you.

Motocraft Expansion Valve w/ Washers Pt #: HL3Z-19849-D

Motocraft Low Pressure Line Washer Pt #: YF-37488, YF37489

Motocraft High & Low Pressure Line Washers Pt #s:
Motocraft Compressor Oil / YN-12-D (WSH-M1C231-B)

Torque Specs:

- Thermostatic expansion valve nut: Torque = 133 lb.in (15 Nm)

- Thermostatic expansion valve manifold and tube assembly nut under battery case: Torque = 80 lb.in (9 Nm)

- Thermostatic expansion valve bolts with allen heads: Torque = 71 lb.in (8 Nm)

- Wheel lug nuts: Torque = 150 lb.ft (204 Nm)
Manifold guage set with vaccum on Amazon.com:

https://www.amazon.com/XtremepowerUS-Vacuum-Refrigeration-Manifold-Gauge/dp/B00SZ4QFW0/ref=sr_1_2?keywords=manifold+gauge+set&qid=1553834366&s=gateway&sr=8-2

Manifold guage set with vaccum on Amazon.ca :

https://www.amazon.ca/gp/product/B07D6K297V/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

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