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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. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    2004 gmc envoy won't stay running.. keeps throwing out TPS codes yet I have purchased a new one. It starts and runs as long as you are parked. But if you drive it it goes into limp mode every few blocks then refuses to start. I read about the p0651 code and how the TPS is on the same 5v circuit...
    2004 envoy po340 po651 tps sensor
  2. 02-09 Brakes, Suspension, Wheels and Tires
    Hello Everyone, I need your help in figuring out the potential issue with my envoy. I took the envoy in for service as My brakes had a pulsating effect when stopping. The technician also mentioned that the rear brakes had little to no brake pressure. The technician ended up replacing both rear...
    2004 envoy abs envoy brake
  3. TrailBlazer / Envoy Chat
    I just bought a 2004 gmc envoy from a used dealership. I took it to get the oil changed & to just get an overall look at it to see what all it needs. The mechanic said I need new valve cover gasket & spark plugs. I paid him $700 & soon as I left in my truck it threw code p0300. No check engine...
    2004 envoy multipe cylnder misfire p0300
  4. West
    ***2004 GMC ENVOY SLE - 3,000 OBO - SERIOUS BUYERS ONLY*** Thanks for looking! I am selling my 2004 GMC Envoy SLE (VIN #1GKDT13S542382276). I have owned this vehicle for 10+ years. I have two other vehicles and simply don't need/want to pay for the needed repairs. This vehicle runs/drives...
    2004 envoy 4.2l engine 4x4 drive train gmc envoy parts
  5. General
    My 2004 Envoy would not start yesterday and realized the fuel pump was not running at start-up. After pulling the fuel pump, I realized there was a melted wire inside fuel pump module. It was the 2 wire connection that attaches to the fuel pump itself to the top inside part of the module. Fuel...
    2004 envoy fuel pump melting fuel pump wire
  6. Transmission Mods
    Hey Guys, I am having a little issue with my 2004 GMC Envoy SLT. It has been acting up lately and i'm not exactly sure why but have lots of information to give up if it will help find an answer. It has been having numerous issues related to what seems to be the transmission but has just...
    2004 envoy bad shifting gmc envoy transmission
  7. Engine Tunes/Mods
    hi. i have a 2004 envoy would like to install my vacuum gauge but i do not know where to install the vacuum gauge T fitting hook up. can someone please help me by telling me where the correct vacuum line is or show me pictures of it? Thank you !!!:thx
    2004 envoy gauges hoses trailblazer vacuum
  8. Engine Tunes/Mods
    i plan on getting a pcm tune from pcm4less. i have spare pcm from a wrecked envoy from work, the thing is both of the pcm's are out of a 2004 envoy, which have the problem of having to be reflashed with the lastest software. my plan is to send in the spare so i have the original from my truck. i...
    2004 envoy 2004 trailblazer case relearn pcm pcm tune
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