K Yukon/Denali 4WD V8-5.7L VIN R (2000)
4. With one end of the retaining clip engaged in the connector fitting slot, use your thumb to rotate the retaining clip around the connector fittings,
until the clip snaps into place.
5. Do not install the new retaining ring onto the fitting by pushing the retaining ring.
6. Ensure that the three retaining ring ears are seen from inside the fitting and that the retaining ring moves freely in the fitting slots.
7. Install the new retaining ring into the remaining quick connect fittings.
8. Install the cooler lines to the vehicle. Ensure the cooler line being installed has a plastic cap on each end that connects to the quick connect fitting.
If no plastic cap exists, or the plastic cap is damaged, obtain a new cap and position on to the cooler line prior to the cooler line installation.
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Before connecting the lines, test the oil flow through the cooler.
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If oil flow restriction is not present, connect the oil lines to the connector fitting.
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If oil flow restriction is present, replace the radiator. Refer to Radiator Replacement
