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  1. Join Date
    Oct 2002
    Posts
    22,658
    #11
    Mine is more of a hissing sound na nawawala kapag malamig na ang a/c (naka-ikot na ang refrigerant).

    Sometimes there is also some 'whine' from the blower motor. It goes away by itself also.

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  2. Join Date
    Oct 2002
    Posts
    5,235
    #12
    been hearing that since I had a car. di ko pinapansin. malamig naman aircon. just turn the volume of you stereo up

  3. Join Date
    Feb 2003
    Posts
    618
    #13
    hi guys ...recently dinadrive ko yung car ko wala na yung hissing sound, sa tingin ko nga dahil yata ito sa matagal kong ndui pagdrive ng car ko...

  4. Join Date
    Jun 2008
    Posts
    37
    #14
    got my vios nov 2009. yesterday naka 3 yun blower. ok naman normal all. then nilagay ko sa 4 para lumamig agad kasi kaka drive lang nakabilad sa araw. yun pag 4 ko sa blower biglang nagkaroon ng whining sound sa blower. the more na malakas yung blower the louder it gets.
    walk-in ako sa toyota commonwealth. iwan auto makukuha after 1 week. pag appointment , may 13 pa pwede at iwan din makukuha after 3 days. nag tanong ako sa denso quezon ave hindi raw sila authorized under warranty pa. pero 1 day lang sa kaninla.
    yung lamig same parin. so it's not the freon. kung may paper or tape na sumasabit pwede ko ba abutin? matatangal ko ba yung cover? malalaman ba ng toyota yung binuksan yun cover?

  5. Join Date
    Jun 2008
    Posts
    37
    #15
    hindi ko na natiis . i opened the glove compartment. and dun pala yun blower hindi na siya gaya nung araw na nasa gitna at naka tutuk sa taas yung fan. then kinapa ko yung fan. ayun! yung plastic na nasa glove compartment nahigop. nawala yung sipol nung tinanggal ko.
    next time wag mag lagay ng mga papel o plastic na pwedeng mapunta sa blower. thanks guys!

  6. Join Date
    May 2009
    Posts
    119
    #16
    whistling sound on an a/c system shows that your expansion valve is working well..yun mga replacement mas malakas ang sipol so go for the oem brand sa toyota denso yan sa PAC sa laguna ginagawa yan..kami supplier ng housing ng evaporator niyan hehehe...wala yan problem as long as lumalamig ang ride mo no need to iparepair ito sabi nga ni sir otep magkaleche-leche lang yan kapag binaklas same as nangyari sa akin nagbara expansion valve ko sa rear a/c ko ayun until now para lang blowerr...ot na censya na...

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aircon experts...strange "sipol" sound coming from the air con vent