Honda Expansion valve noise

Discussion in 'General Motoring' started by Weekendmech, Aug 29, 2006.

  1. Weekendmech

    Weekendmech Guest

    I just replaced the compressor, condensor, expansion valve and drier on
    my 95 accord. Flush the lines, added oil, vac'd the system for an hour
    and charged it. It is blowing good cold air but I get a high pitched
    squeal that sounds like it is coming from the expansion valve when I
    turn the system on. It only last for a few seconds. It also happen
    occasionally while driving for a few seconds. If I recall the
    pressures were 40 and 175 at 80 degrees outside temperature. The data
    I have says the system holds 23.5 ounces of 134 but I probably only
    charged it with about19 to 20 ounces. I thought I read somewhere that
    this sound can be cause by a low charge. Anybody agree with this or
    have any other ideas?
     
    Weekendmech, Aug 29, 2006
    #1
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