okay. so reading on here i found out that if i have transmission fluid in my vacuum lines it means that the vacuum switch and transfer case seal are bad?? i remember taking off that ball on the hood and long behold transmission fluid was inside there. i know know that my transfer case seal is bad and the vacuum switch is also bad. so i know what parts to get now.

this has been taking my transmission fluid out of my tranny and causing me to throw the dredful p1870 code. this is just from lack of transmission fluid and i plan on replacing my fluid once it warms up outside. i know that the transmission is not slipping because it engages firmly into OD when the engine is at a cooler temperature.

my only question now is how do i get that transmission fluid out of my vacuum lines and HVAc system once i fix the faulty parts? does time remove it or do i need to drain the lines myself?