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  1. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    my trailblazer wouldn't go into 3rd 6 months ago and we got an offer to switch out the transmission for a rebuilt one for $300 at the same time we messed with some of the electrical stuff because my right headlamp was off and we fixed both issues. but about 2 months ago it started to act up...
  2. General
    So I bought this 06 Trailblazer last November. Haven’t driven it 1000 miles yet. I’ve had a lot of electrical issues since I got it. 1. The rear door and wiper hardly ever works. I try to lock it and it stays unlocked. Every now and then the lock will actually work and lock the rear door. But...
  3. General
    Hello all, Looking to see if anyone has some knowledge on an issue i am having. My third row heating is not working, and my fan mode will only stay on high and won’t go to any low settings (for front and back.) I’ve spent around $800 at the dealership and they cannot figure it out. I’ve...
  4. OEM Issues
    I have a 2006 trailblazer LS V6. I let my brother use it and he accidentally jumpstarted it by the fuse cables that stick out of the fuse box on the driver side engine bay. After that nothing in the truck turned on besides the gauges and the engine, but the truck was drivable. But ac, window...
  5. 02-09 General Tech Q&A
    Hello. I'm a first time poster, and also first time trailblazer owner. I have a 2004 Trailblazer LT EXT I6 with 162k. I live in a colder climate and this is my first winter with the vehicle. ITS BEEN COLD. We've had consecutive days with 0-20°F temps. I've had/have a few minor issues and...
  6. Off-Road
    Got a 2006 Chevy trailblazer LS 2wd and was looking around for like a 3 or 4 inch lift kit, can’t really find out which ones are good for me & was also wondering about how much I need in the front & the back to make both even and level too because Ik generally the front is a little lower than...
  7. 4x4 Drivetrain
    I'm new to the forum and need help. I've recently gotten a 2002 Trailblazer EXT LT from my parents to use as a work truck so I don't use my car to get in and out of jobsites that often don't have roads or even gravel. I tried using the A4WD the other day to get across some pretty greased up mud...
  8. Introductions
    My name is Manuel, I live in Mexico just south of the border from Arizona. I own a Chevy Trailblazer '02 with a 6 cil 4.2 2006 engine. Recently I decided not to change my TB for a new car but to invest some money on this one and get it in sharp condition and even update it a little... So I...
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