How to cheque rear suspension on 2006 GMC Envoy

Air compressor for rear airsprings fail causing rear suspension to sit very low

by in Sacramento, CA on May 21, 2012
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1 answer 1 comment
ANSWER by , May 21, 2012
bad air vale in compressor orbad seal
COMMENT by , May 22, 2012
can you haer the compressor running, if you u have a leak at air bags or air bags themselves. seek a diag these can be a pain to repair even for a good mech.