You have come to the right place if you need new or replacement parts for your 2006 Trailblazer. Advance Auto carries over 2,910 aftermarket parts for your 2006 Chevrolet Trailblazer, along with original equipment manufacturer (OEM) parts. We’ve got amazing prices on 2006 Trailblazer Tools, Fluids & Garage and Air, Fuel, Emission & Exhaust parts. I have a 2006 trailblazer that has a 4.2 i6 that I am swapping to a 5.3. So my question is on the ECM can I use the factory ECM with the new motor? Accordingly to GM they are the same part number.
If your Trailblazer is experiencing electrical problems, you should always check the fuses first, because they are relatively easy to check and cheap to change. If you need to replace a blown fuse in your Trailblazer, make sure you replace it with one that has the same amperage as the blown fuse.