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2002 gmc envoy_sle_xl
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Discussion Starter · #1 ·
Ok, I know that there is an electric ride sensor module from frame to axle. But, my question is where is the valve that lowers the vehicle when it is sitting too high after a trailer disconnect or something?

My envoy squats occasionally when shut off. It does not always do this so I do not believe it is an actual normal leak but instead this valve sticking sometimes. Or maybe is it compressor blow by?
 
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