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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 check engine light clean coolant custom differential electrical engine envoy exhaust ext fan clutch fuel fuel pump fuse gas gmc 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 sensor shocks speakers ss stalling starter stereo struts subwoofer suspension swap switch tbss tccm throttle body tires trailblazer transfer case transmission transmission problems vibration water pump wheels wiring xuv
  1. OEM Issues
    Hi All, New to this site...lots of great info here. I did some searching, but can't find an answer to my question. I bought an '06 GMC Envoy XL and only drove it 100 miles before the check engine light came on with a misfire on cylinder 6. Diagnosed it as a bad lifter (AFM) and observed the...
    afm cylinder head removal
  2. Engine Tunes/Mods
    okay to start I have a 06 Trailblazer with the 5.3. I had a DOD lifter fail on me so I did the DOD delete. New PCMofNC Rob style cam LS7 lifters LS7 valley pan replacement new valve springs PCV delete PCMofNC mail order tune everything else is stock. I'm getting some valve train noise after...
    afm afm delete cam swap dod dod delete
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