Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum banner
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  1. 4x4 Drivetrain
    Ok, just bought a 2003 Envoy two days ago. I noticed when at a light the lights on the selector went from 2wd to 4wd (without touching the switch). And i did hear and feel the transfer case change. i moved the switch to 4wd and back to 2wd and it went back to 2wd. Hope it does not go to 4lo...
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