Engine AirIntake ExhaustGasRecirc

This 2001 Ford V6~4.0L~SOHC is factory fitted with the ExhaustGasRecirc\EGR system pictured below.

The ExhaustGasRecircValve, left side of IntakeManifold throat, is Vacuum actuated by the EGRSolenoid. The EGRSolenoid, mounted near EGRValve, is a 12v VacRelay actuated by the PowerControlModul\PCM. The DiffPresFlowElement allows calculation of Flow from ExhaustManifold to EGRValve to IntakeManifold. The DPFElement, mounted on 2 RiserHoses+Tubes, sends DiffPressure to the PCM for calculating Flow.
 * EGRValve is a known failure item; easy to Remove+Clean+Lube, every 50kMiles.
 * Ford# xc2e-9d475-a3a \ 1L5e-9d460-a3a \ c55.0f19b
 * PinA~PinB = 30~37ohm
 * Ford# f57e-9j459-ca \ 0e30a.pa66-m40.pp-gf30.5
 * DPFElement is a known failure item; easy to Replace, when CheckEngineLit & OBD2TroubleCode=P0401.
 * Ford# 4u7e-9j460-aa \ 4u7z-9j460-aa \ dpfe4
 * 0i125 0m004 ID HiTemp RiserHoses are known failure items; easy to Replace, every 100kMiles.
 * Ford# 1L3z-9p761-aa \ 1L3z-9p761-ba \ f57z-9p761-p \ f65z-9p761-fa \ f6zz-9p761-cb \...

Links To Related Info
Thanks go to the brave souls who've preceded me in similar adventures & freely shared their experience:
 * https://easyautodiagnostics.com/ford/4.6L-5.4L/how-to-test-the-egr-system-1 EGR Test
 * https://youtu.be/ihCmVYqk_lw?t=17 EGRValve Fix
 * https://youtu.be/HpmMa7z8NGo?t=8 EGRValve Mod
 * https://youtu.be/g3k8kuJ30UQ?t=17 DPFElement Fix
 * https://sporttrac.org/threads/rough-idle.123230/#post-1043831 DPFElement Fix
 * https://web.archive.org/web/20210131201728if_/http://www.explorerforum.com/forums/threads/egr-hose-replacement.491232 DPFE Hose Fix