GM will fix the rough idle on some of its V-8-powered SUVs and pickup trucks. The vehicles involved in this technical service bulletin include the following: 2008 - 2009 Chevy TrailBlazer and GMC Envoy 2008 - 2009 HUMMER H2 2008 - 2009 Saab 9-7X 2008 - 2010 HUMMER H3 2009 - 2010 HUMMER H3T 2008 - 2011 Cadillac Escalade, ESV, and EXT 2008 - 2011...
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