Can anyone help? I need to know how I can clean and/or clear out my air conditioner drain hose. I have an 03' Crew cab. 4x4. I'm not sure where to even find it.

 

Same problem with rank smell when a/c turned on.

I pulled away lower dash on passenger side and followed duct to firewall area (not a great distance, but impossible to see with panel in place) and then looked for drain from same area on outside side of firewall.

No luck finding drain, period. I also took to mechanic and no luck either.

If you getta reply on "where" the drain is, I would think you'd have a chance to then "unplug" it and consequently take care of the rancid smell. At least I'm hoping.

 

Take a mirror and a flashlight and look at the bottom of the big black box under the hood in the heater area. I had that problem and found it easily like that, it's easy to reach also, and I just poked something up into the hole and it drained.