Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 544 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSENGINE OIL COOLER HOSE/PIPE REPLACEMENTREMOVAL PROCEDURE
2009 Chevrolet Tahoe Base, 4.8 C
Removal Procedure
2009 Chevrolet Tahoe Base, 4.8 CSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The optional oil cooler is either an integral part of the radiator or a separate unit placed in front of the radiator. The cooler lines and hoses are serviceable.
- Disconnect the engine oil cooler quick connect fittings. Refer to Engine Oil Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
- If equipped with regular production option (RPO) L76 (6.0L) engine, perform the following.
- Open the oil cooler hose clip located on the lower fan shroud.
- Remove the oil cooler hoses from the clip.
- Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
- If equipped with RPO LY6 (6.0L) engine, remove the oil cooler hoses from the clip.
- Place a jack or utility stands at the rear of the vehicle.
- If equipped, remove the engine protection shield. Refer to Engine Shield Replacement .
- If equipped, remove the oil pan skid plate, if equipped. Refer to Oil Pan Skid Plate Replacement (1500 with RPO NZZ) , Oil Pan Skid Plate Replacement (2500/3500 with RPO NZZ) .
- For both 1500 and 2500 series, support the front differential carrier with a suitable adjustable jack.
- For 1500 series vehicles, remove the differential carrier right side nuts.
- Remove the differential carrier left side bolts.
- Lower the differential carrier.
- For 2500 series vehicles, remove the differential carrier right side nuts.
- Remove the differential carrier upper mounting bolt and nut.
- Remove the differential carrier lower mounting bolt and nut.
- If equipped with RPO L76 (6.0L) engine, perform the following:
- Lower the differential carrier.
- Remove the oil cooler hose adapter bolts (2).
- Remove the oil cooler hose assembly and gasket. Discard the gasket.
- Inspect the fittings, connectors, and cooler hoses for damage or distortion.
- If equipped with RPO LY6 (6.0L) engine, perform the following:
- Remove the oil cooler hose bracket bolt. (1)
- Remove the oil cooler hose adapter bolts. (2)
- Remove the oil cooler hose assembly. Discard the gasket.
- Inspect the fittings, connectors, and cooler hoses for damage or distortion.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.