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Weird AC problem.
On 6/30/2011 1:04 PM, XS11E wrote:
> > wrote: > >> On 6/30/2011 1:46 AM, XS11E wrote: >>> > wrote: > >> An off the wall guess is that there is a bit of crud floating >> around, and plugging the orifice. When the compressor shuts off, >> the internal pressures start to equalize, and may be causing the >> crud to move out of the way. > > That's a possibility... > >> The next question is when was the dryer changed? > > Not since I got the car, probably never. > >> With the old freon, anything you do is gonna be expensive. >> (Salvage, filter, reuse, etc. requires equipment that was not >> cheap!) > > Fix is easy, evac system, remove receiver/drier and scrap, remove > compressor and drain oil, replace with R134a oil, replace > compressor, install new receiver/drier, evac and recharge with > R134a. Not all that expensive, even if a new/rebuilt compressor is > needed, I'v done it with no problems and found the cooling was not > reduced at all in spite of reading many comments to the contrary. > > Unfortunately, I'm no longer able to do that nor do I wish to pay > the cost of having it done. The AC is very likely to remain > non-functional. > > > The reason I asked about the drier is that sometimes old ones become saturated? and little pieces get into an A/C system. The same is true of rubber "O" rings, and metallic particles that get past the filter. I had one system on a Mazda van that failed (compressor). The amount of crud from the compressor was high, and looked like a gray paste. It was all over. We had to flush out everything. At least the mileage was over 200k miles. |
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