Question about 2004 Honda Accord

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A/C Doesn't Work

At first the A/C would go on and off randomly. It would go fine then blow hot air. Now it's completely out. Have tried switching out the relay switches but still doesn't work. Is there anything that I can do to fix this that's cheap? Or any other ideas at all? I live in Texas and it gets incredibly hot without A/C!

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  • donwgood Apr 24, 2009

    What would you suggest if the refridgerant has been tested, seems to be at the appropriate levels yet the AC compressor cycles on and off about every 8 seconds. All I get is warm air as the compressor doesn't seem to run long enough to cool anything down.

  • Anonymous Apr 25, 2009

    sound like the generator trying to lock up



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Hi. your AC has depleted its freon reserves and it will need to be recharged. you can buy a recharge kit at your local auto parts store or, you can simply take this vehicle to the mechanic for this recharge as well.

Please rate and have a great day:)

Posted on Apr 22, 2009

  • Michael Masters
    Michael Masters Apr 22, 2009

    HI again, i have put together a check list that you can use to troubleshoot your system. run these test before you recharge the system.

    Basic Checks and Information

    1. Check Drive Belts - The air conditioner utilizes a
    drive belt
    that supplies power to rotate the compressor, which is basically a refrigerant pump.
    If the belt fails the compressor has nothing to drive it, inspect and replace as
    needed to restore operation. If belt is intact proceed to the next step.

    2. Check for Compressor Clutch Engagement - Turn the air conditioner to
    the "on" position and set controls to the coldest setting. Start the
    engine and
    allow to idle. Then open the hood and inspect the clutch at the front of the compressor,
    is it turning? "Engaged" if so, the system has enough refrigerant to activate. If
    the system is low on refrigerant it will not work properly. In this case an
    air conditioner recharge
    is needed to recharge the system. If the system is low on refrigerant it
    could cycle on and off, making a ticking noise. If the compressor clutch is not turning
    proceed to next step.

    3. Inspect for Refrigerant Leaks - If the system has a large leak and
    no refrigerant remains it will not activate. First, test system for a static pressure
    charge and with the
    engine off attach an
    ac gauge to the low
    side pressure port and check the state of charge. Depending on outside temperature
    there should be between 50 psi and 80 psi. (Cool and warm).

    A refrigerant leak detector is needed to inspect for leak, but if you do not
    have a leak detector there is an alternative method. The
    air conditioner system
    is designed to run with oil suspended in the refrigerant to lubricate the system.
    Check for oily residue outside the system by inspecting all hoses, compressor, condenser,
    evaporator or receiver drier and replace any component that has failed.

    Replace failed parts as required,
    vacuum system with a vacuum pump and recharge using an
    air conditioner recharge
    . If system has sufficient refrigerant (134a) proceed to next step.

    4. Inspect Fuses - Check under dash panel and
    under hood power distribution
    . Replace failed fuses as needed, recheck system. If the new fuse fails when
    reinstalled a short circuit is present and requires diagnosing with a
    wiring schematic,
    follow circuits to locate short, repair as needed and recheck system.

    5. Check Temperature Control Vents - The vents inside your car are
    controlled by a cable, electrical servo or vacuum servo. If the vent door is not
    functioning properly it will cause warm air from the heater to exit the vents. To
    check this start the car and allow the engine idle, next turn the
    blower motor speed
    on low, switch the temperature control from warm to cold while your ear is close
    to the vents. You should hear the door move inside the heater box as it swings from
    open to close. If not, insect for a vacuum leak or a shorted motor in the servo,
    repair the leak or replace the servo motor.



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