ac "muffler"

Discussion in 'General Automotive Tech' started by BelugaBuick, Aug 2, 2019.

  1. BelugaBuick

    BelugaBuick New Member

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    I tried to fill my 1990 Buick Estate ac up with freon (it's been converted already to the new stuff) and I can hear and feel air coming out near the compressor...but tracked it down to what my Buick shop manual calls a ac muffler. It's an aluminum can like shape behind and a little lower from the compressor. Any experience with this? Where to start? etc.

    Obviously I am not a mechanic, I just want to keep the beast on the road and its hot here in Texas!

    The following pics are from a much cleaner car...

    Thanks!
     

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  2. Poison_Ivy

    Poison_Ivy Dogzilla Fan

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    If it didn't leak before the conversion, it's likely to be leaking at one of the fittings, if it was part of the conversion.
    What exactly was done, during converting it over?
     
  3. Silvertwinkiehobo

    Silvertwinkiehobo "Nothing is foolproof as fools are ingenious."

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    Well, first off, remove any refrigerant traces, then disconnect the line with the muffler at the compressor. Inspect, and perhaps go ahead and replace, the o-ring seal. Then go through and do a visual inspection of that line, especially on its underside, to see if there are any obvious holes in it. If you hear hissing, it's big enough to see. Another member with a GM wagon around the same year as yours, had trouble with one of his lines having rubbed through, on the aluminum, I think, and he had to replace it.
     
  4. BelugaBuick

    BelugaBuick New Member

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    That was me! Same car...new ac issues haha..

    thanks
     
  5. Silvertwinkiehobo

    Silvertwinkiehobo "Nothing is foolproof as fools are ingenious."

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    Really? It was a while ago, and I just don't retain names anymore. Don't feel bad...I replaced my 2000 Century's compressor clutch assembly for a bad clutch coil, and now it's not even getting the voltage through the new coil to engage it. So I get to go down below, again, find out why not.
     

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