Having problems with your 2003 GMC Sierra ?
Testing 2003 GMC 1500 4wd front axle actuator
\015 How can I bench test a actuator to make sure its defective before I change it. I think it locks in on 4wd low but not on 4wd high. then it probably isnt the front axle actuator\015
Repair Help & Product Troubleshooting for 2003 GMC Sierra
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