OEM 2007 Buick Terraza Window Regulator

2007 Buick Terraza Parts Questions & Experts Answers

• Q: How to replace the front side door window regulator on 2007 Buick Terraza?

  A: The procedure to replace the front side door Window Regulator begins by assembling tools that include the door module coil spring tool (J38864). The first step involves the removal of the front door trim panel together with the front door water deflector. The front door window can be freed from the sash by using a flat-bladed tool to push the retaining tabs. The window should stay in place through application of cloth-backed body tape placed over the door top. Disconnect the wires from the motor of the regulator while using marker and grease pencil to draw a reference line on the spring which will help later during reassembly. The door module coil spring tool (J38864) enables release of regulator spring tension before the power Window Motor can be unsnapped from the lock module. First turn the window counterbalance spring stud counterclockwise by 1/4 turn before pulling it from the module and afterward separate the regulator from the lock module. Installation requires the regulator to attach to the lock module followed by lubricating the motor drive gear and regulator sector teeth and installing the window counterbalance spring stud by turning it 1/4 turn for locking. The power Window Motor installation requires snapping it onto the lock module so that the marked line matches for proper counterbalance spring tension. Install the spring tension using the door module coil spring tool (J38864) after which you must connect the wiring harness to the regulator motor. Fix the tape from the door glass before placing the glass into position then place the window sash onto the glass and complete the installation by reinstalling the front door water deflector along with the front door trim panel.