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2002 2003 2004 2006 2007 4.2 4wd 4x4 a/c abs actuator air conditioning air suspension alternator amp arnott audio battery black bose brakes clean coolant custom differential door electrical engine envoy exhaust ext fan clutch fuel fuel pump fuse gas gmc gmc envoy grille headlight headlights hid hids hvac idle ignition ignition switch install interior introduction leak led lift lift kit lifted lights misfire mod mods no start noise oem offroad oil olds bravada oldsmobile bravada p0300 paint pcm power steering radio rear reduced engine power replace rims rough idle shocks speakers ss stalling starter stereo subwoofer suspension swap switch tbss tccm thermostat throttle body tires trailblazer transfer case transmission transmission problems vibration water pump wheels wiring xuv
  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...
    p0014 p0171 and p0340 p0172
  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...
    p0171 and p0340
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