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Q: Rear air compresser syas running why what can i do on 1998 GMC Envoy

my 1998 rear air compresser stays on and my service engine light stays on how do get the rear air compresser off and light
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you more than likely have an air leak that wont allow pressure to build. get it checked out and a bid. i do not think the check engine light has anything to do with it. get it checked at the same time

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