bad smell coming from heating AC ducts.



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Thread: bad smell coming from heating AC ducts.

  1. #31
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    My van smelled the same but it was just that heavy felt pad underneath the carpet corrupting. For the person who asked, not every WalMart has Odoban, but Sams Club always has it, the smell is like Eucalyptus, like a dentists office. It is a disinfectant, primarily and will kill most any kind of bacteria and virus without risk of bleaching. Lysol tells you on the package that to kill the most virulent strains it has to be wetted with lysol for a certain period of time, not just sprayed over. So you can try whatever you can get, but check to see if your condensate tube is draining first or if it is draining back into the floorboard. If not, you will not fix the problem for long.
    2005 T&C Ltd 3.8 69k
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    1990 Grand Caravan 3.3 149,000 owned 15yrs 4 trannies
    1990 Dynasty 3.0 120k 1 tranny 4yrs
    1981 Dodge Aries 2.6 only new car I ever bought 225k orig 11yrs
    1966 Dodge Coronet 440 Wagon, way old 1 yr. 135$ (Had to borrow it at the bank!)
    1964 Simca 1000 (bought for $10 rebored) 50k 4yrs
    1965 Ply Valiant V8 85k
    1964 Ply Valiant Wagon slant 6 200k 1 qt/200 miles
    1969 Corvair convertible 4 carb

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  3. #32
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    Quote Originally Posted by tcwagner1 View Post
    My van smelled the same but it was just that heavy felt pad underneath the carpet corrupting. For the person who asked, not every WalMart has Odoban, but Sams Club always has it, the smell is like Eucalyptus, like a dentists office. It is a disinfectant, primarily and will kill most any kind of bacteria and virus without risk of bleaching. Lysol tells you on the package that to kill the most virulent strains it has to be wetted with lysol for a certain period of time, not just sprayed over. So you can try whatever you can get, but check to see if your condensate tube is draining first or if it is draining back into the floorboard. If not, you will not fix the problem for long.
    It even kills the aids virus.
    2001 Infiniti i30 3.0 DOHC V6: VQ30DE 177,000 miles; 1999 Nissan Altima GLE KA24 168,000 Miles
    1997 Dodge Ram 1500 SLT Laramie 5.9 46RE, 182,000 Miles
    Prev. 97 T&C LXi 184k 3.8, 94 T&C 3.8 156k Miles, 93 GV LE 3.3 123k

  4. #33
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    You know, after giving it a lot of thought, I don't think the volume of cleaner, disinfectant is the most important thing. Since the liquid should not go directly into the exaporator anyway, it is a fog or spray that will be most effective getting into the evaporator coil and drain pan most likely. If the ac is on, and cold, any liquid in the air will condense on it (along with whatever disinfectant you choose) and run into the pan and out. Gallons poured in will work, but likely from the fumes evaporating and being sucked in the same way. That is my best guess.
    2005 T&C Ltd 3.8 69k
    2000 Caravan 2.4l
    1990 Grand Caravan 3.3 149,000 owned 15yrs 4 trannies
    1990 Dynasty 3.0 120k 1 tranny 4yrs
    1981 Dodge Aries 2.6 only new car I ever bought 225k orig 11yrs
    1966 Dodge Coronet 440 Wagon, way old 1 yr. 135$ (Had to borrow it at the bank!)
    1964 Simca 1000 (bought for $10 rebored) 50k 4yrs
    1965 Ply Valiant V8 85k
    1964 Ply Valiant Wagon slant 6 200k 1 qt/200 miles
    1969 Corvair convertible 4 carb

  5. #34
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    Quote Originally Posted by tcwagner1 View Post
    You know, after giving it a lot of thought, I don't think the volume of cleaner, disinfectant is the most important thing. Since the liquid should not go directly into the exaporator anyway, it is a fog or spray that will be most effective getting into the evaporator coil and drain pan most likely. If the ac is on, and cold, any liquid in the air will condense on it (along with whatever disinfectant you choose) and run into the pan and out. Gallons poured in will work, but likely from the fumes evaporating and being sucked in the same way. That is my best guess.
    Gallons poured in was my whole theory, fast enough to get it to go into the evap but slow enough to keep from overflow.
    2001 Infiniti i30 3.0 DOHC V6: VQ30DE 177,000 miles; 1999 Nissan Altima GLE KA24 168,000 Miles
    1997 Dodge Ram 1500 SLT Laramie 5.9 46RE, 182,000 Miles
    Prev. 97 T&C LXi 184k 3.8, 94 T&C 3.8 156k Miles, 93 GV LE 3.3 123k

  6. #35
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    Wink BLEACH yikes!!!!!!!!!

    Quote Originally Posted by sideburns2009 View Post
    I had this problem on my '97. I poured warm bleach water into the exterior ducts(by the windshield wipers) with the fan on full blast(be sure its NOT on recirculate). I did about 2gallons, slowly as to not overload the condensation drain and have it overflow inside the van. Then I did one gallon of cool plain water. The smell went away. If the a/c has leaked before and someone has added a can of freon with stop leak and it leaks the stop leak out, it will smell like dirty socks/shoes. Stop leak STINKS! and will clog the expansion valve.
    Bleach will deteriorate rubber seals and gaskets, I will not use bleach on anything in the van!!!!!!!!!!!
    Pinesol or Odoban is ok.
    2000 Caravan 3 L. 17-20 MPG. 134,000 klm. New tranny at 97 K. Tires are P205 70R14 Bridgstone M+S. 123,800 KM. replaced tensioner pulley, serpentine belt, and power steering pulley.
    Old reliable - 1982 Dodge Ram Long Box 318 Auto 3 speed transmission 66 K.

  7. #36
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    Quote Originally Posted by dun4now View Post
    Bleach will deteriorate rubber seals and gaskets, I will not use bleach on anything in the van!!!!!!!!!!!
    Pinesol or Odoban is ok.
    It's just alittle bleach water. Very diluted, just enough bleach to do it's job. Nothing got hurt as far as I know.
    2001 Infiniti i30 3.0 DOHC V6: VQ30DE 177,000 miles; 1999 Nissan Altima GLE KA24 168,000 Miles
    1997 Dodge Ram 1500 SLT Laramie 5.9 46RE, 182,000 Miles
    Prev. 97 T&C LXi 184k 3.8, 94 T&C 3.8 156k Miles, 93 GV LE 3.3 123k

  8. #37
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    Anyone still read this thread? I just googled this and found this post, needing help. I sprayed the vents (by wipers) with lysol *but* the hose that connects these vents to whatever its connected to inside under the hood is broke off about 2 inches from these wiper vents (so its actually pulling air from around the engine! probably not good on the AC to have to cool that air off, anyway what is that hose called? I want to get it replaced but no clue as to what to ask for ? lol

    I later sprayed lysol in the broken end to actually get to the inside vents so that's simple enough but want to replace this hose now. Any help is appreciated
    1999 Grand Voyager SE 175k miles

  9. #38
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    Just a quick thanks for the input. I have a 1999 Grand Voyager SE and had a horrible aroma somewhat akin to vomit being emitted from the vent system whether A/C or heat. I used Odoban as described, though not necessarily applied as described. What I found was that water was settling in the intake for the fan. Initially, I found the pad under the carpet on the passenger front was wet. I could not find a source for the water. I dismantled way too much stuff, but did manage to find the drains for the front and rear A/C units. The front drain for the A/C coil in the duct work is located behind the engine, with a 90 degree rubber elbow that directs flow downward. Mine was not clogged. What I ultimately found was a drain that I had to access through the fan housing. I had to remove the cover plate for the fan. I first took the glove box out for better visibility and then the fan cover plate. I had water dripping from the fan by this time. I then reached up inside the housing toward the front of the car and found water sitting in a hollow area. I found a small drain in the bottom of the hollow with my fingers and used a tie wrap to clean it out. When I finished pushing the tie wrap in and pulling it out, a flood of water drained out.
    Hope this helps others find their solution, and again many thanks for all the previous posts. Especially for the Odoban suggestion. That stuff is the best!!!

    Also forgot to mention that there is a keystone shaped rubber cover/plug in the ductwork that is visible with the glovebox removed, which when removed gives pretty good access to the A/C coil, so I was able to directly spray Odoban on the coil once all was done. It may not have needed it, but I figured better safe than sorry.

    Regards,

    Alifea

  10. #39
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    Chlorine is a neurotoxin. Might as well breathe the mold.
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  11. #40
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    Quote Originally Posted by alifea View Post
    I then reached up inside the housing toward the front of the car and found water sitting in a hollow area. I found a small drain in the bottom of the hollow with my fingers and used a tie wrap to clean it out. When I finished pushing the tie wrap in and pulling it out, a flood of water drained out.
    Where did you see the water drain out? Is there a second drain tube coming out through the firewall, or does the extra passage actually channel water from the recirculation door housing to the bottom of the evaporator box?

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