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part # for the vacuum switch?

84CUCV

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DO any of you know what it is? The chevy dealer couldn't help me with this, so I was hoping one of you could thanks mike
 
I vaguely remember this. It's on the top, box style filter?

If it's what I think it is, block it off. They leak more than then help and later years did away with them due to that.

I could be wrong about what you're looking for. /forums/images/graemlins/wink.gif
 
That is why I was trying to find a new one. It is leaking. What does it do anyway? thanks guys mike
 

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