Where is AC/HVAC Drain Plug, and how to clean in there?

[cognus]

can't believe how difficult this is to find: From what I read, the way to clean the inside of the evaporator 'drain box' or drain 'circuit' or whatever you wish to call the removal of condensation to dump on the ground outside [hopefully], is to "remove the drain plug and spray like mad". Or disassemble everything

Can someone enlighten me? Feedback on guys who have tried shooting foam of the drain TUBE that hangs down to the bottom of chassis [almost] is not positive.... tube full of cleaner but not really effective??

appreciate your expertise as I have none :hatsoff:

 

[AuSeeker]

can't believe how difficult this is to find: From what I read, the way to clean the inside of the evaporator 'drain box' or drain 'circuit' or whatever you wish to call the removal of condensation to dump on the ground outside [hopefully], is to "remove the drain plug and spray like mad". Or disassemble everything

Can someone enlighten me? Feedback on guys who have tried shooting foam of the drain TUBE that hangs down to the bottom of chassis [almost] is not positive.... tube full of cleaner but not really effective??

appreciate your expertise as I have none :hatsoff:

There is no drain plug, only a drain tube straight out of the evaporator housing, on our 4th Gens it is on the passengers side of the firewall, directly above the frame rail where the frame and firewall meet, it's just a rubber tube coming out of the firewall and when dripping condensation it will drip right on top of the frame rail, many 4th Gen owners have extended the tube and routed it away from the frame rail so it can no longer drip onto the frame and cause rust.

Get yourself a automotive AC drain and evaporator cleaning kit and follow the directions.

 

[cognus]

thank you so much!! no wonder I couldn't find an image or anything searching for "drain plug"

There is no drain plug, only a drain tube straight out of the evaporator housing, on our 4th Gens it is on the passengers side of the firewall, directly above the frame rail where the frame and firewall meet, it's just a rubber tube coming out of the firewall and when dripping condensation it will drip right on top of the frame rail, many 4th Gen owners have extended the tube and routed it away from the frame rail so it can no longer drip onto the frame and cause rust.

Get yourself a automotive AC drain and evaporator cleaning kit and follow the directions.