A/C problem.

michaelhinkle1michaelhinkle1 Senior Wagonist
in Electronics, Fueling & Air Conditioning
Whenever i turn on my a/c it blows fine for about 5 minutes but then it looks like smoke begins to come out, it's really white and doesn't have a smell.

It is literally completely oderless and doesn't seem to effect anything, you can barely even see it, but it is pretty noticable if you watch.

any ideas?

Comments

  • bam-bambam-bam Council Member
    water vapor. check that the condensate drain from your evaporator box thru the firewall is unobstructed. The hvac intake on our cars is completely unfiltered, and I've found gobs of sh!t in both of ours.
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    wheres the evap. box? and can i just pull it to find out?

    just tell me what to do and i'll do it.

    whpshhh i sound whipped.
  • bam-bambam-bam Council Member
    simple test: park the car in a dry spot with the ac on. you should see water dripping kinda behind the transmission.
  • bam-bambam-bam Council Member
    find that hose, kinda below the fuelfilter but above the steering rack, and clean it out. or... look behind the glovebox, above the ecu. There's a round housing on the right (blower), then just to the left of it a squarish one (evaporator). You'll see that the bottom of it funnels into a hose (same one as above). You can pull it off there and clean it. be advised that if you pull it out of its grommet thru the firewall it's a bitch to reinstall
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    it does drip behind the transmission.


    "kinda below the fuelfilter but above the steering rack, and clean it out.

    or... look behind the glovebox, above the ecu"

    are both these the same hose? if not, should i clean out one then the other?
  • bam-bambam-bam Council Member
    michaelhinkle1 wrote:
    wheres the evap. box? and can i just pull it to find out?

    quote]



    The evaporator core is fairly easy to remove (relative to some others I've seen!), BUT will require (legally) removing the refrigerant from the system, then breaking the connections just outside the firewall before pulling it out from inside the car.
    my advice? don't mess with it. clean the tube so that it will drain. If you have working ac, probably r12 even...let it be.
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    i dunno the difference in a/cs man, i just know it's the standerd crap that came in the 90 2wd models. it blows..decent, not very hard at all.

    i might just take it somewhere and have it fixed so i don't end up destroying something.
  • bam-bambam-bam Council Member
    bam-bam wrote:
    a hose (same one as above).

    yep, same hose. sorry, I'm not the best at explaining what is like breathing to me.

    If the drain can't keep up with the amount of water being produced, the fan will blow some water through the ducts with the conditioned air. stick something flexible in the end of that hose and ream out the black funky goo (a zip-tie works well)
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    is it the hose about 5 inches below the fuel filter? in meets with the firewall. how hard is it to put that hose back in?
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    let me note, is it the one thats about as big around as a pencial? and has a metal clip looking thing that goes into the firewall?
  • bam-bambam-bam Council Member
    ti's just an unnecessary PITA, there's really no reason to remove it. I did, and regretted it. just giving you the benefit of my experience.

    Wait til during the day when it's hot, and run the ac until it's blowing vapor like you described. THEN stick your ziptie in from the outside and let the pent-up water rinse out the gunk you break loose.
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    you have me so confused man, if i don't pull the hose thats below the fuel filter from the firewall, then how do i stick something in it? haha. jeez man, you have my mind running in circles.
  • bam-bambam-bam Council Member
    michaelhinkle1 wrote:
    let me note, is it the one thats about as big around as a pencial? and has a metal clip looking thing that goes into the firewall?
    it's about pinky-sized, and i don't recall a metal clip, just a rubber grommet. look in the daylight, it's the one with water dripping from a cutoff end.


    bedtime. g'night.
  • bam-bambam-bam Council Member
    I'll try to post some pics tomorrow :lol:
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    alright, appericate the help man. thanks a lot.
  • Eagle BeagleEagle Beagle familEE
    its the same, but picz from bam will do just fine : )

    CRX Type 2 - 1991 -D16A6 Service Manual.pdf

    Chapter 22
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    nothings there? haha.
  • Eagle BeagleEagle Beagle familEE
    Sorry it took me a while to track it down, all the others were 300+MB,

    Service_Manual.zip

    never anticipated that 'others' might need the info, me ego-bastard :)
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    appericate it man!
  • bam-bambam-bam Council Member
    Here's the drain hose, directly below the purge canister (this thing)

    191.jpg

    Here I've removed the canister and its vent hose: That's the hose in question in the center just below the insulation

    192.jpg

    This is it removed

    193.jpg
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    so remove the canister, remove that hose and clean it out?

    i really appericate you taking pictures and doing all of that, it was out of the way but i really really appericate it.
  • bam-bambam-bam Council Member
    You really don't HAVE to remove the canister, but it just slides in its bracket and is easy. Makes for better access.

    good luck with it.
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    pulled the canister, removed the tube and blew in it, it's not clogged, it's completely clean.

    any other ideas?
  • bam-bambam-bam Council Member
    check that the place it hooks to (inside the car) isn't obstructed. On both mine that box was full of tree debris.
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    box? does it have a filter thing on it? i remove the glove box and it's white and on my right side?
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    http://i282.photobucket.com/albums/kk27 ... tled-2.jpg

    that box? the pictures 56k friendly but too big to post here.
  • Eagle BeagleEagle Beagle familEE
    What time of day does this occur...
    check your windshield if there is any signs of residu...

    Time of day relates to air humidity

    residu relates to possible leakage, check looking glas...

    nope im not an expert...is there a doctor in the house : ) ?
  • michaelhinkle1michaelhinkle1 Senior Wagonist
    night or day, hot or cold.
  • Eagle BeagleEagle Beagle familEE
    When i have to leave very early in the morning, graze an river, windows
    closed, ac on, condense in no-time, it was pretty funny, i stopped,
    i thought, oh heavy fog,
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