2007 Buick Lucerne Automatic Transmission Oil Cooler Line Connector

Pull the plastic cap back from the quick connect fitting and down along the cooler line about 5 cm. Pull on one of the open ends of the retaining ring to rotate the retaining ring around the quick connect fitting until the retaining ring is out of position and can be completely removed. Remove the retaining ring from the quick-connect fitting. Discard the retaining ring. Pull the cooler line straight out from the quick-connect fitting.

The recommended bolt torque is 18 N.m (13 lb-ft).

Do not reuse any of the existing oil lines or oil line fittings if there is excessive corrosion. Do not reuse any of the existing retaining rings that were removed from the existing quick-connect fittings. Install new retaining rings.

Install the TOC fitting to the radiator. Connect the TOC line to the TOC fitting. Snap the plastic cap onto the TOC fitting. Ensure that the plastic cap is fully seated against the fitting. Ensure that no gap is present between the cap and the fitting. Remove the drain pan from under the vehicle. Lower the vehicle. Inspect the fluid level and add fluid if necessary.

Raise and support the vehicle. Position a drain pan under the vehicle. Disengage the plastic cap from the TOC fitting. Pull the plastic cap back along the pipe. Disconnect the TOC line from the TOC fitting. Remove the TOC fitting from the radiator.