Hello,
2009 Silverado 1500 5.3 had a dead battery when I got home from vacation. Installed a new battery and started driving as normal. All monitors except evap have completed. I keep the tank between 1/4 and 3/4. Try driving according to methods to complete without success. There are no trouble codes. All systems read normal. I've been driving this for six weeks now and still cannot complete.
Any suggestions would be appreciated.
Robert