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How to Replace Axle Shift Actuator 02-06 GMC Envoy XL

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  1. step : Removing the Wheel (0:38)
    • Pry off the center cap with a flat blade screwdriver
    • Loosen the lug nuts with the vehicle on the ground
    • Raise the vehicle with a floor jack
    • Secure the vehicle on jack stands
    • Remove the lug nuts
    • Pull off the wheel
  2. step : Removing the Axle Shift Actuator (1:01)
    • Disconnect the actuator wiring harness
    • Remove the two 8mm bolts from the actuator
    • Tap the actuator with a hammer to loosen it
    • Pull off the actuator
  3. step : Installing the New Axle Shift Actuator (2:21)
    • Put the new actuator into place
    • Insert the two 8mm bolts into the actuator
    • Connect the actuator wiring harness
  4. step : Reattaching the Wheel (3:04)
    • Slide the wheel into place
    • Start the lug nuts by hand
    • Tighten the lug nuts preliminarily
    • Lower the vehicle to the ground
    • Tighten the lug nuts to 100 foot-pounds in a crossing or star pattern
    • Reattach the center cap

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Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of Thanks.

In this video, we're going to show you how to replace the axle shift actuator on this 2003 GMC Envoy XL. The items you need are a new axle shift actuator from, an 8mm and 19 mm socket and ratchet with an extension . and a swivel is recommended ., flat blade screw driver, torque wrench, and jack and jack stands.

Start out by removing your wheel and tire. Pry off the cap first. If you don't have the benefit of air tools, you'll want to loosen the lug nuts then raise and secure the vehicle on jack stands and remove the lug nuts the rest of the way. We have air tools, so we put the vehicle up on jack and jack stands, remove the lug nuts, and remove the wheel and tire.

On the harness, on your shift actuator, just pry this clip down and pull it off. Now you want to pry out on the tab on the harness while prying down with another screwdriver to get the harness free. It can be a little difficult because sand does get inside there. You could get in here with something even as simple as an 8mm wrench. There are two bolts: one on top that holds it and then one on bottom. The easiest way is to use a nice long extension, and a swivel joint. I've got some tape on it to keep it stiff, and an 8mm socket. Just undo these bolts, and they'll come out. Once you get the bolts out, you may have to just tap on it a little bit with a hammer just to loosen it up, and then it will come out. Once those two bolts are removed, the actuator just pulls free.

On the right, is the old axle shift actuator. On the left, is the new one from 1A Auto. You can see they're identical, and they'll fit exactly the same. Take your new axle shift actuator and push it into place. Then replace those two 8mm bolts by hand. Then tighten them up the rest of the way with your ratchet and extension. Reconnect the harness and push that clip back up into place.

Replace your wheel. Replace the lug nuts and tighten them up preliminarily. Lower the vehicle. Tighten them the rest of the way and torque each of them to 100 foot pounds in a crossing pattern.

We hope this video helps you out. Brought to you by, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.

Tools needed for replacement:

    General Tools

  • Hammer
  • Floor Jack
  • Jack Stands

  • Ratchets & Related

  • Torque Wrench
  • Swivel
  • Socket Extensions
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 8mm Socket
  • 19mm Socket

  • Wrenches - Metric

  • 8mm Wrench

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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