[Vwdiesel] A/C. Again

[lbaird119 at aol.com]

  I suppose liquid refrigerant making it back to the compressor could "slug" it and make it knock and noy cool well.  That should require it to do ok at the start and then the noise pick up as it keeps running.  Not enough oil to start with could cause it to start knocking over time I suppose.  James prebably has dealt with similar on his equipment at some time...  :-)  Gauges and checking for frost or cold lines where they shouldn't be can go a long way to diagnosing it.
  I'd forgotten I need to replace the compressor on the Passat as well.  It simply just doesn't cool anymore but it's not low on refrigerant and the clutch works.  So been wondering myself if the cheaper (most likely Chinese compressors are crap and need to spend twice as much myself.
     Loren



-----Original Message-----
From: Shalyn Shourds <sshourds at flash.net>
To: vwdiesel <vwdiesel at vwfans.com>
Sent: Wed, May 1, 2013 10:02 pm
Subject: [Vwdiesel] A/C. Again


Two years ago, I replaced my 2000 Jetta's a/c compressor.  I got a new one for 
bout $250, installed it, and went on my way.  The VW shop where I got the 
ystem vacuumed and recharged told me that if I paid less than $500, I was 
etting a bogus "new" compressor and it was almost certainly a rebuild with 
hinese innards.  
Now, I have a pronounced hammering sound when I run the compressor.  I'm 
nclined to believe them now.  First compressor lasted 11 years.  
Thoughts on compressors?  I bought this sold as new from AutohausAZ.  Never had 
 problem before.  It's getting toward summer here in Texas and it's a mission 
ritical part.  No matter how beat up and old the car on the road here, the a/c 
lways works.  It's that kind of hot.  I gotta decide whether to buy another 
250 compressor or pay the probably $500 this shop wants for the part.  
I'm also open to suggestions as to why the sounds and mediocre cooling could be 
omething other than the compressor.  I try hard to not have a lot of experience 
orking on a/c systems.  
-Shalyn
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