You hear more about them because of the pain they are but I wouldn't say they go out more. I remembered after the last response, you can pull the compressor off, it should be if I remember 4 bolts without draining it. Also I think there is a bracket too.
It basically goes to the block as a "by pass" around the water pump. This ensures the water pressure the equalize when the thermostat open/closes.
If you need anything else, let me know
Sunday, June 30th, 2013 AT 11:26 PM