Sierra Classic 2500 4WD V8-6.0L (2007)
18. If equipped with a 8.1L engine, perform the following:
1. Remove the oil cooler hose bracket bolt.
2. Disconnect the quick connect fittings (1) at the engine.
3. Remove the oil cooler hose assembly. Discard the gasket.
4. Inspect the fittings, connectors and cooler hoses for damage or distortion.
Installation Procedure
1. Notice: Refer to Fastener Notice in Service Precautions.
Important: A distinct snap should be heard when assembling the tube ends of the hose assembly to the quick connectors. To ensure the tube is
fully inserted into the connector, check by giving the tube a forceful pull.
If equipped with a 8.1L engine, perform the following:
1. Install the oil cooler hose assembly and a NEW gasket.
2. Connect the quick connect fittings (1) at the engine.
3. Install the oil cooler hose bracket bolt.
Tighten the bolt to 50 Nm (37 ft. lbs.).
2. If equipped with a 5.3L or 6.0L engine, perform the following:
1. Install the oil cooler hose assembly and a NEW gasket.
2. Install the oil cooler hose adapter bolts (2).
Tighten the bolts to 12 Nm (106 inch lbs.).
3. Install the oil cooler hose bracket bolt (1).
Tighten the bolt to 25 Nm (18 ft. lbs.).
