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  1. Engine Tunes/Mods
    I am new to posting on this forum, but I was looking to see if anyone else has ever swapped a 2006 4.2 Trailblazer motor with a 2007 4.2 Trailblazer motor? I have seen throughout the internet, where other people have swapped them without any difficulties. I just wanted to make sure that I...
  2. OEM Issues
    Okay, this is a good one! I was driving down the highway at around 65 MPH when my check engine light popped on and the engine immediately bogged and almost died. The light went off and engine was back to normal almost immediately (wierd). After this, the tach now doesn't work. I have been...
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