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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. General
    Hi I've got an 03 trailblazer with around 180k. I've begun noticing that i lose alot of speed when going up hills. I live in an area where i go over one on my way to work and no matter how much speed i build up (around 60-65) I'm down to 30-35 half way up the hill. Its not even a very large...
    03 trailblazer
  2. Introductions
    So I just bought a 2003 Trailblazer LT 4X4 with the 4.2L, I am here for info on lifting it, and I want to see what all you guys have done to yours.
    03 trailblazer new owner
  3. General
    Ok I'm sure this is going to make me sound stupid, but on my 03 trailblazer theres a small on off switch to the left of the steering wheel near the hood release lever, theres also a little black button above it. I have no idea what it does :crazy: is it for when a trailers attatched? Because...
    03 trailblazer on off switch switch
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