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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 overheating 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 Vortec 4.2L I-6 Engine and Drivetrain
    So when you Delete/Replace/Swapout the fan clutch to an electric fan setup, your vehicle will report back to your PCM as a failure or Check Engine light event P1481, making it impossible to pass a state inspection in the future... If anyone knows of a solution to that, I'd love to hear it!
    efans fans
  2. Engine Tunes/Mods
    Trying to get installation of pcmforless efan kit finished up. Having trouble with accessing underneath fuse box with wire bundles on both sides. Wondering if anyone can suggest the best technique to avoid breaking something and get access to the bottom of the fuse box and get my last two...
    efans fuse box pcmforless wire tapping
  3. Engine Tunes/Mods
    Yesterday I installed a set of LS1 eFans using a kit from PCMforLess. I got the fans off of a 2000 Camaro Z28. The fans fit perfectly and work like stock. I reflashed the PCM myself using HPTuners and copied the new fan data from a 2007 TBSS LS1 efan file. (The PCM must be reflashed because...
    efans ls1 pcmforless
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