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  1. The 02-09 "How-To" and DIY Section
    Hello all, I was wondering what kind of fairly priced and relatively cheap tech upgrades I could add to my '03 envoy, using compatible hardware, i.e. something from a newer Envoy or trailblazer, or a cousin GMC vehicle. I'm less focused on horsepower or speed, though I wouldn't complain, and...
  2. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    I am reaching out to the Trailvoy community as I am not sure what to do next. I have a 2002 Tblazer that has a consistently rough, low idle, it hesitates when accelerating from a stop and almost stalls. The worst part is, I am getting about 350km to a 60L tank of fuel... I used to get almost...
  3. OEM Issues
    I tried Google and these forums but have been unable to find anyone with similar symptoms. Here's what I have: 2002 Trailblazer LTZ 4wd, 230,xxx miles SES light recently came on and produced codes P0171 and P0130. Poor fuel economy. NO driving issues at idle or while moving. While idling, I...
1-3 of 3 Results