C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
12. If equipped with a 6.0L engine, perform the following:
12.1.
Remove the oil cooler hose bracket bolt (1).
12.2.
Remove the oil cooler hose adapter bolts (2).
12.3.
Remove the oil cooler hose assembly and gasket. Discard the gasket.
12.4.
Inspect the fittings, connectors and cooler hoses for damage or distortion.
13. If equipped with a 8.1L engine, perform the following:
13.1.
Remove the oil cooler hose bracket bolt.
13.2.
Disconnect the quick connect fittings (1) at the engine.
13.3.
Remove the oil cooler hose assembly. Discard the gasket.
13.4.
Inspect the fittings, connectors and cooler hoses for damage or distortion.
Installation Procedure
Important: A distinct snap should be heard when assembling the tube ends of the hose assembly to quick connectors. To ensure the tube is fully
inserted into the connector, check by giving the tube a forceful pull.