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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 232 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSENGINE OIL COOLER HOSE/PIPE REPLACEMENTREMOVAL PROCEDURE

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Removal Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. 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 cooler lines. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting .
If equipped with a 6.0L engine, perform the following:
1. Open the oil cooler hose clip located on the lower fan shroud.
2. Remove the oil cooler hoses from the clip.
3. Gently, pull the oil cooler pipe fittings straight out from the radiator quick connect fittings.
4. Raise and suitably support the vehicle.
  
  Fig 1: Removing Oil Cooler Pipe Fittings (6.0L)
  Courtesy of GENERAL MOTORS CORP.
If equipped with a 8.1L engine, perform the following:
1. Remove the oil cooler hoses from the clip.
2. Gently, pull the oil cooler pipe fittings straight out from the radiator quick connect fittings.
3. Raise and suitably support the vehicle.
  
  Fig 2: Removing Oil Cooler Pipe Fittings (8.1L)
  Courtesy of GENERAL MOTORS CORP.
If equipped, remove the engine shield bolts.
Remove the engine shield.

Fig 3: Removing Engine Shield Bolts & Shield
Courtesy of GENERAL MOTORS CORP.
If equipped with the a 6.0L engine, perform the following:
1. Remove the oil cooler hose bracket bolt (1).
2. Remove the oil cooler hose adapter bolts (2).
3. Remove the oil cooler hose assembly and gasket.
  Discard the gasket.
4. Inspect the fittings, connectors and cooler hoses for damage or distortion.
  
  Fig 4: Removing Bolts, Oil Cooler Hose Assembly & Gasket (6.0L)
  Courtesy of GENERAL MOTORS CORP.
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.
  
  Fig 5: Removing Bolts, Quick Connect Fittings & Oil Cooler Hose Assembly (8.1L)
  Courtesy of GENERAL MOTORS CORP.

RENDER: 1.0x

NO RELATED

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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.