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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. 02-09 General Tech Q&A
    Well I bought this 07 trailblazer with the turbo on it already did a little work to get it to run and drive but as it gets boost at 2500 goes to limp mode but if you be very nice it runs and drives fine but if you push it get very unhappy quick no tune just a upgraded fuel 340 lph and depenaled...
    turbo 4.2
  2. Engine Tunes/Mods
    Attention all turbo/supercharged/nitrous 4.2 i6 trailvoy members, please post pics of your F/I i6's With pics,mods/parts list,approx. hp output, and approx. cost of f/i upgrade,and who performed the swap This will inspire all the n/a 4.2 I6 guys into possibly building an "SS Killer".... With...
    supercharged 4.2 turbo 4.2 turbo i6 turbo trailvoy
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