Engine Size: 5.7L
Refrigerant Type: 134a
Country of Origin: United States
How common is a front evaporator core leak in late 90's Chevrolet SUV's (Tahoe specifically). My friend at work was seeing the classic green oil around the compressor after putting in some dye, but after ordering the compressor, accumulator and o-rings to complete the repair job, a tech here told him he thought he had an evaporator core leak, after using the halide sniffer. I'm wondering about the legitimacy of this claim??
My '94 Sub (R134a) is still on its factory evaporator, condenser, fan, etc. But it has gone through two compressors, never seized, just the compressor body leak. My mode is always "fix first what you KNOW is bad", in your case the compressor body leak
If he has dye in the system, and it showed the compressor body leaks, have him place a white rag under the evap drain and let it run on outside air, after the rag is soaked, see if UV dye is mixed in with the water, otherwise in my opinion, evap leaks are not common, compressors are.. have him check out the Sanden or Seltec compressors on Ackits.com (I went with the Seltec on mine) and they work flawlessly..If he's using a GM compressor might pay to return it and go with the Sanden or Setec clones..Just my opion though....
Freedoms just another word for nothing left to lose
Interestingly, the tech said he was not able to find the leak via the dye test (not sure if he stuck a rag under the evap drain elbow as Chick suggested) or one other way tried. I have a hard time believing this guy.... He went so far as to say that compressor failures weren't that common on these trucks, and he questioned me buying a Shrader valve for the low side port, when I clearly heard a hiss and was unable to stop the leak by unseating and then seating the core.
Try new AC shop.
...and get this. His price JUST to replace evaporator was $960. Checking baseline time across several mechanics in area (dealers included) is an 8 hour job, give or take an hour. That comes to, on the high side, $640 an hour (with a dealer labor rate of $80 per hour). This guy is smoking something.
Your arithmetic is not correct. $640/hour for 8 hours is $5120.
my bad...I meant, it comes to $640 total (8 hours x $80 per hour a typical dealer 'round here gets).
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