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  1. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    Well after getting my envoy back together after cleaning the tb and clearing codes and a good few days of driving like a dream My truck idles rough smells like gas again then sputters and randomly stalls This time I got codes P0014 vvt solenoid? P0172 rich P0420 catalyst efficiency P0171 lean...
  2. OEM Issues
    First, please go easy on me if I don't use the correct terms when describing my problem. I have learned a lot from this forum and other problems that I have had and been able to fix myself. Being a woman, I don't like just running to the shop and handing over a credit card because I tend to...
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