C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
4. Ensure the 3 retaining ring ears can be seen from the inside of the connector and the retaining ring can move freely in the slots.
5. Install the engine oil cooler line into the quick connector fitting until a click is heard or felt.
Pull back on the engine oil cooler lines to ensure a proper connection.
Important: Do not manually depress the retaining clip when installing the plastic cap.
6. Snap the plastic cap onto the quick connect fitting.
7. Ensure that the plastic cap is fully seated against the fitting.