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2004 envoy
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  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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
  6. 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...
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