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1-5 of 5 Results
  1. General
    I have a 2004 Trailblazer 4X4 4.2L. My starter went out. After replacing it, I got a bunch of weird codes like something was unplugged. It also had a misfire in cylinder 2. I replaced the coils and plugs, now I have random misfires. Anybody have a clue where I should start?
  2. OEM Issues
    Hello all, I have an '04 trailblazer with 4.2L. Within the past week it seems to run sluggish around 1500-2000 rpm, no power. If I give it more gas it'll down shift and power is back, seems normal at the higher rpms (almost like hitting the power band in a two stroke dirt bike). I have an...
  3. Introductions
    Im a new member from College Station Texas. I have a 2004 trailblazer LS 2WD. Good to be here!! Thanks for a great site for our problems!! I have two issues and they may be related. I have already done tons of work on my 04 trailblazer. My problem is, that she is starting to lag all the way...
  4. General
    Hey guys, I need some expert opinions on what has proven to be a hard issue to resolve. I bought a 2004 Trailblazer 4.2L about 2 months ago. About a week or so after I owned it, it started to seem quite sluggish to me, and it also shifted hard, especially in the lower gears. Then the check...
  5. OEM Issues
    :bonk: I've searched the site extensively, Completed all suggestions/recommendations. Big issue is when driving under mild load conditions. i.e. cruise on flat roads, slight exceleration, or sometimes just idle, the TB has a sluggish feeling and a deffinate lug or vibration felt throughout...
1-5 of 5 Results