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  1. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    Hello all, I have an 06 Trailblazer I recently bought which the body and interior are in near perfect shape but had an engine knock. I bought a used and tested 06 4.2 from a reputable local salvage yard that has a warranty. I hired a local mechanic known for doing engine swaps and after...
  2. Audio and Electronics
    I have an 06 TB, and the previous owner installed a cheap aftermarket radio. I want to put a factory radio back in, and I would like to find the part#, or if a radio from a different vehicle would hook right up? Thanks
  3. Exhaust Mods
    I have a 2006 Trailblazer. I am looking for step by step instructions to remove and replace the catalytic converter. When I started it, there was a faint smell of rotten eggs. There is lagging upon acceleration...not all the time but it happens enough to need to fix it. Check engine light is...
  4. The "How-To" and DIY Section
    I can't really seem to get a fix on why a 2005 Alternator can't be fit on a 2006 Trailblazer 4.2L LS. Is it the amps? The bracket? The connector? 2006 Trailblazer is out on an Island as the 2007-09 also do not retro. I want to fit one of those HO Alts but most only go to 2005.
  5. OEM Issues
    Hi there :tiphat, My 2006 Trailblazer is driving me nuts. :suicide: Side note: I know verrrry little about cars. I live in MI & it's freezing. I have a remote starter installed. OnStar isn't activated. The battery was replaced July 2013. It's been tested and is still good. Main problems: -...
1-5 of 5 Results