93 Accord, warm air from vents

Discussion in 'Accord' started by Mac, May 17, 2004.

  1. Mac

    Mac Guest


    The heat is killing me!! I only get warm air from the vents no matter
    what setting I use. When I put the air con on I get a little cool air
    fron the 2 centre vents only but nowhere near as cool as it used to be
    & the side vents are tossing out more warm air. Does anyone have any
    possible pointers & is there anything I can check myself or does it
    require an expensive garage visit?

    Thanks for any replies
    Mac, May 17, 2004
  2. Mac

    Tones Guest

    There should be a slider or knob to select warmer air or cooler air. I
    don't recall whether you have a mechanical slider for the warm/cool setting
    or if it is an electronically operated slider. It is probably a simple
    mechanical slider that slides a cable in/out to operate a flapper that
    selects/deselects air going around your heater core. If it is mechanical,
    then it is probably the cable that has come loose. You can probably fix it
    by pulling the console apart to get at the cable and fixing what broke. If
    it is electronic, it is more complicated.
    Tones, May 18, 2004
  3. Mac

    Randolph Guest

    I would like to add to that that the slider operates not only the little
    flaps, it also operates a valve in the coolant line going to the heater
    core. If this valve is stuck open (or the linkage is broken), you will
    get somewhat warm air even if the flaps around the heater core are
    operating normally.
    Randolph, May 18, 2004
  4. Mac

    Phil Guest

    My '95 Odyssey did this, but it would get cooler when the slider was moved
    to cool, but always warm. So, I took things apart to get to get to the
    mechanism. This was not too hard, for the end of the cable at the slider
    end. However, that end is not adjustable. The design is such that you will
    never be able to get the cable out of the big plastic panel that holds the
    cable and a myriad of other parts. You have to pry to plastic fingers apart
    that snap into a groove in the cable sheath and also pull the cable away
    from the plastic housing. You need three hands in an area where hands the
    size of mouse feet are needed. Clearly, never designed to come apart, but
    since there is no adjustment, no matter. I moved to the other end of the
    cable which was so buried in plastic duct work, I couldn't even find the end
    of the cable. Surprisingly, after lubricating the slide lever mechanism,
    and doing my best to get lubricant down the cable, the heat control worked
    better and it pretty much stays cool now. But, I pity the person who has to
    take that cable out.

    - Phil
    Phil, May 18, 2004
  5. Mac

    N.E.Ohio Bob Guest

    On the '93, the rotary knob on the dash sends a signal to the water
    flow valve under the hood. The valve is easily reached from the
    passenger side at the fire wall. You can release the cable end from the
    lever, and make sure the valve closes fully. May need lubed with
    silicone spray, or replaced.
    Are you sure the A/C is working? Is the clutch engaging when you hit
    the button and turn on the fan? May be time to have the refrigerant
    pressure checked. bob
    N.E.Ohio Bob, May 18, 2004
  6. Mac

    Grahame Guest

    Here's the site where you can find info to fix this problem:
    Grahame, May 19, 2004
  7. Mac

    Jason Guest

    If you live in an area where it gets really cold in winter, it's very
    possible that you did not make use of the AC for several months. If so,
    it's very possible that you need to add freon (spelling???). I advise you
    to check the freon level or have a mechanic check it for you if you don't
    know how to do it.
    Jason, May 20, 2004
  8. Mac

    motsco_ _ Guest


    The first generation Odyssey does that too. The 'water tap' under the
    hood isn't shutting off all the way. Just pop the cable retainer apart
    and change the adjustment so the water shuts off tighter.

    If you choose to lube the cables under the dash, use graphite in a
    liquid form. Lock Ease (aerosol) from a lock shop is perfect. Blue can.

    motsco_ _, May 20, 2004
  9. Mac

    Adam Wilner Guest

    A very common problem is the knob for the temperature setting breaks. It has
    a plastic shaft that encompasses a medal collar that fits onto the actual
    control. They have a habit of cracking and then cannot grasp the collaron
    the controller. You get one temperature until you either replace the knob or
    utilize needlenose pliers and turn the control back towards the cool or blue
    area. I believe a new knob is less than $10 and definitely worth while. I
    even keep extras on hand
    Adam Wilner, May 21, 2004
  10. Mac

    Mac Guest

    Thanks everyone who replied but especially Adam. I pulled off the
    temp knob & sure enough the plastic shaft had split. I was able to
    turn down the temp with a pair of pliers & now I'm just hoping that
    the warm weather comes back.
    Mac, May 24, 2004
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