Sierra 1500 2WD V6-4.3L VIN X (2004)
13. 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. 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.
If equipped with a 8.1L engine, perform the following:
1. Remove the oil cooler hose assembly.
2. Connect the quick connect fittings (1) at the engine.
3. Notice:
Refer to Fastener Notice in Service Precautions.
Install the oil cooler hose bracket bolt.
Tighten the bolt to 50 Nm (37 ft. lbs.).
2. If equipped with a 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.).
