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Old 02-10-2011, 12:35 PM   #5
insite
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Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
no, the handle actuates the part i'm talking about. i know you know this, but for others reading who may not: this entire apparatus is a pressure bleed valve, much like a conventional radiator cap.

when there is too much pressure in the system, a spring loaded valve will open and allow pressure to bleed out through a tube that exits under the right side of the car. the system is supposed to hold some predetermined amount of pressure, but to relieve that pressure if it gets too high.

the bleed valve is ALSO used to 'burp' the system, and this is done by actuating the wire handle JFP is referring to.

in my situation, the valve is actually opening under normal operating temperatures & relieving pressure when it shouldn't be. i suspect the valve is bad & needs to be replaced.
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