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Chasing a rough idle?
Ok so my 2009 Tahoe 5.3 has been running a bit rough/choppy. It has had codes previously but have since not come back. Small and large evap leak, and misfire codes. Problem is it’s idling at about 575-600. When it idles over 600 it runs nice. When it drops into the 500s is when it runs rough but...- 2009TahoeLT
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- Replies: 63
- Forum: Engine & Drivetrain
