Wrong auto tranny cooler.
No cowling around eng fan.
If the cowling is not done correctly around any electric fan, air won't go through the rad(S) in front of the fan. Air will be drawn in on the sides, around the circumference of the front edges of the fan....ESP when you are dealing with back pressure / partial vac on the front side.
Unfortunately, he was sold a... 'solution' for a problem that didn't exist in the 1st place... ( eng rad + HE for blower). His ONLY issue was auto tranny temps..and that's an easy fix.... ( B+M 13K BTU auto tranny cooler, 3/4" thick, installs directly below oem auto tranny rad....and plumbed in series with it. $55-$80).