Engine Size: 5.3
Refrigerant Type: R-134
Country of Origin: United States
I'm working on a 2002 Tahoe that had the high pressure switch blown off the back of the compressor. It came apart at the crimped metal ring discharging the refrigerant. The Tahoe has 150k miles on it. There was some clutch noise noted but after pulling the compressor the innards are intact. The orifice tube has a very small amount of debris on it. I put some air pressure to the condenser to make sure it was not plugged.
The plan is to replace the compressor and orifice tube, purge the system with nitrogen, evacuate and recharge.
I wondering why the switch blew?
Also, what visc. and how much oil does this system take? it has rear a/c. One thing I forgot to order!
Edited: Mon September 19, 2011 at 10:14 PM by Snowmover
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