SD AC drain (?)
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Senior User
Joined: Jan 2004
Posts: 130
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From: People's Republic of CA
SD AC drain (?)
2001 F350 S/D--
Today after 2 days rain + truck parked for the duration, I noticed water buildup in the AC/ heat system ducting, etc., so much that when I started driving the truck it sloshed out from under dash and onto the pass side floorboard, probably a good cup or so.
I'm assuming rain water came in thru fresh air intake somehow and into evap core box, filling it up, then sloshed out underdash vent.
Looked for a evap drain hose, there is none. Is drain integral with box then? How do I clear drain (or check it)?
Is there some other place water could intrude into system and fill something else up where it would get into cab like this?
Anybody else have this problem with around this year F-series?
My other F-series trucks (96+older) never have had this happen.
Any help would be much appreciated.
Today after 2 days rain + truck parked for the duration, I noticed water buildup in the AC/ heat system ducting, etc., so much that when I started driving the truck it sloshed out from under dash and onto the pass side floorboard, probably a good cup or so.
I'm assuming rain water came in thru fresh air intake somehow and into evap core box, filling it up, then sloshed out underdash vent.
Looked for a evap drain hose, there is none. Is drain integral with box then? How do I clear drain (or check it)?
Is there some other place water could intrude into system and fill something else up where it would get into cab like this?
Anybody else have this problem with around this year F-series?
My other F-series trucks (96+older) never have had this happen.
Any help would be much appreciated.
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
The evap drain tube is under the outside of the heater box whatever you want to call it.....you may have to get under the vehicle and look up to see it. The hose doen't come through the firewall much at all. Use a pipe cleaner???
