HAC Valve Question (1 Viewer)

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Nov 10, 2013
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Phoenix, AZ
Hey all, been a while since I last posted. I'm working through my FJ60 and today stumbled across the HAC valve. The cap on the bottom portion was completely loose and had come off the bottom of the valve. There were two filter elements that were pretty dirty and the vent hose was clogged something fierce! I cleaned the clog out and washed the two filters and reassembled, that was the easy part.

But now I'm not sure how to test the valve to determine if it still functions. I live at 6500 ft, and drive the rig near 11,000 on occasion... I'm guessing this component is pretty important! Is there some procedure to test its functionality? I searched but am not sure of what I'm reading.

Thanks in advance,
Randy
 
Testing procedure is in the emissions FSM.
See attached pdf.
 

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