Hey just as the title says my 87 3.9l Dakota stalls when it's cold and I go into reverse. The Transmission fluid is brand new, and new trans cooler lines between the metal and the new radiator. I'm pretty sure that it's not a clogged trans cooler line. It's odd that it only stalls out when going reverse when cold. When it's warmed up a bit there's no issue going into reverse.

A few things I guess I should note as well. When I first start the truck it idles super high until I hit the gas pedal and only then it calms down.