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How To Replace Front Axle Actuator 2002 - 2006 Chevy Trailblazer

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How To Replace Front Axle Actuator 2002 - 2006 Chevy Trailblazer

Created on: 2011-05-27

Replace the front axle actuator with the help of this video if yours is broken, malfunctioning or not engaging four-wheel drive.

  1. step 1 :Remove the Front axle actuator
    • Turn the wheel to the right.
    • Unbolt the actuator from within the passenger side wheel well.
    • Use your 8 mm socket and ratchet to do this.
    • Unplug the connector
  2. step 2 :Install the new front axle actuator
    • Plug in the new actuator and connect the wiring harness.
    • Use your 8 mm socket and ratchet to bolt the actuator in.

Tools needed

  • Socket Extensions

    8mm Socket


Brought to you by 1AAuto.com. Your source for quality replacement parts and the best service on the Internet. In this video we're going to show you how to change the front axle shift actuator on this 2004 Trailblazer. Same as any '02-'09 Trailblazer. Also the same as the GMC Envoy, Buick Ranier, Olds Bravada, Isuzu Ascender, and Saab--the 9X. Only tool you'll need are an 8-mm socket with a ratchet and extension. In this video I do have the vehicle up on a lift, but you really don't need to have anything like that. You can reach it right on the ground.

I'm looking at the passenger side front wheel. I have it turned all the way. We can see right in here, there is our axle actuator. An 8-mm socket with an extension and a ratchet. I'm just going to fast-forward through removing those two 8-mm bolts. You take your actuator out. Your lead, press on the tab right here, it comes apart. Blow out that a little bit. New actuator's on the right. All the same. They plug in the same and everything. Plug it in. Guide it through here to the hole. It's got an O-ring, just press it in a little bit. Set the upper bolt first. The lower bolt, I'm going to put into my extension and guide it in there.

Make sure they go in nice and easy by hand first, so you don't cross thread them. I'm going to use fast-forward again as I tighten these up. You don't want to tighten just one up all at once. You want to snug one and then snug the other one and then tighten them up after that. When you tighten them, you want to give them... they probably should be about 8 to 10 foot-pounds, which is not very tight. Just tighten with the small ratchet and that's about it. Don't over-tighten them. We hope this helps you out.

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2002 - 2006  GMC  Envoy
2002 - 2004  Oldsmobile  Bravada
2003 - 2008  Isuzu  Ascender
2004 - 2005  GMC  Envoy XUV
2002 - 2006  GMC  Envoy XL
2002 - 2006  Chevrolet  Trailblazer EXT
2004 - 2007  Buick  Rainier
2002 - 2007  Chevrolet  Trailblazer
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