I'm planning to flush the coolant on Friday and would like to backflush the cooling system with a kit I got the other day. It looks fairly easy, but the instructions to the kit (2nd picture) say to connect to the heater inlet hose, and I don't know which one that is. I have pictures of the hoses, marked with letters.
As far as coolant draining, the shop manual says just remove the radiator drain plug, but I remember reading in posts here that there is a hose to disconnect near the oil pan that will remove more of the coolant. There even used to be a picture of which one it was, but it was an old post and it's gone now.
Heater hose inlet -- Hose "A" or "B"?
Prestone backflush kit instructions
Also...is "F" a hose I can disconnect to drain the system better at the end of the flush? I have read on this board that there is a hose near the oil pan that can drain the cooling system more thoroughly, and I hope it's the last marked hose in this pic...I know it's not "C," that's the lower radiator hose, and I'm pretty sure it's not "D" or "E" either. (If I remember right, D & E connect to what I think is the variable speed sensor)
Maybe "F" is an oil line? Not sure what it is, but these are the only hoses that were near the oil pan that I could see