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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. The 02-09 "How-To" and DIY Section
    Hi, I bought an 02 GMC Envoy only 3 months ago at 235,000km. I wasn't expecting it to be perfect, the entire time I've had it the belt has needed replacing (haven't had the time) because it squeaks but that seemed to be the only issue. I'm now noticing that I have to top up my engine coolant...
    coil misfire engine coolant envoy gmc suv
  2. Engine Tunes/Mods
    Hey Guys! I have been using TV to do all the work on my 2003 Tb LS 4x4. Just last week I Purchased a 2007 Trailblazer SS and have decided to become an actually paying member of this website. It has helped me so many times & I would like to give some information back to new TB owners. I have a...
    engine coolant engine management new member tbss temperature
  3. General
    I have a 2004 Chevy Trailblazer w/ 150XXX miles. its been acting crazy it drives fine when the weather is cold. no problems. when the weather is over 65 degrees is when it seems the problem starts. I had about 10 codes and they all had to deal with the (TPS) in different readings I purchased...
    engine coolant reduced engine power throttle body tps
  4. Engine Tunes/Mods
    First this is my first post, please forgive me if I use laymen terms whereas I am not a mechanic. I got a DOCII P0128 Error 2 weeks ago, it cleared and re-popped about a week later. For a 2004 Trailblazer 4.2 this code points to temperature problems related to the thermostat or ECT (Engine...
    ect engine coolant temperature sensor thermostat
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