Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum banner

plugs

  1. Changing misfire code - 0305 then 0301 on '03 EXT LT 4.2

    OEM Issues
    Hi everybody, I need some help asap. My battery went out last January in a remote place and I had Walmart replace it. The genius over-tightened the positive terminal and it loosened over time(stripped threads) allowing corrosion to set in. A couple days ago, the terminal finally went...
  2. [SOLVED] Rough idle after spark plug change

    OEM Issues
    Hi everybody! This is my first post, so I hope I threw this in the right place. So I know there are already plenty of threads regarding this sort of thing... I changed my spark plugs, I used AC Delco 41-103 plugs, I made sure they were all gapped around .042, I used dielectric grease, I made...
  3. Idle Problem, Please Help!

    The 02-09 "How-To" and DIY Section
    Hello... I have an 04 GMC Envoy SLT. Its an I6 and just had the transmission rebuilt. It has around 116K miles, and the plugs were changed less than a year ago as well as a professional fuel system cleaning. They cleaned the coil packs but did not change any out. About 6 months ago, well...
  4. Change plugs & wires when doing headers?

    Exhaust Mods
    I'm at 60k miles right now and I plan to install Stainless Works Headers and true duals this fall. I watched this video on youtube because I'm seeing how difficult it's going to be to install the headers. http://www.youtube.com/watch?v=XmR14swnieo In the video they mentioned installing...
  5. What else could it be...?

    Engine Tunes/Mods
    I have a 2002 TB LT EXT with 155000 miles on it. The engine idles low, is very rough, and if I just barely touch the accelerator the engine stalls or at least hesitates when parked. It will also stall on its own when stopped at a light. Having the AC on seems to make it worse, but it will...
  6. Misfire Since the Dealer Changed My Plugs

    OEM Issues
    Hi everyone! Just joined Trailvoy yesterday - I'm loving the site. Got an '04 TB EXT with a 5.3L, about 140K km (87K mi). I didn't have time to change the plugs so I sent it to the dealer with plugs I bought (maybe that ticked them off) a set of Champion platinums. Got it back, they said I...
Top