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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1598 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSRADIATOR OUTLET HOSE REPLACEMENT (DIESEL)INSTALLATION PROCEDURE

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Installation Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Outlet Heater Hose & Outlet Radiator Hose

Courtesy of GENERAL MOTORS CORP.

Install the radiator outlet hose to the vehicle.
Install the radiator outlet hose and clamp to the radiator. Ensure the hose is positioned properly in order to prevent interference with the fan shroud.
Install the radiator outlet hose clip retainers to the brackets.

Fig 2: Identifying Radiator Outlet Hose (Diesel)

Courtesy of GENERAL MOTORS CORP.

Install the surge tank outlet hose (1) to the surge tank.

Fig 3: View Of Radiator Outlet Hose At Engine

Courtesy of GENERAL MOTORS CORP.

Install the radiator outlet hose and clamp to the water pump.
Install the heater outlet hose to the radiator outlet hose.
Install the upper and lower fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement (LMM Diesel) or Engine Coolant Fan Upper Shroud Replacement (Mechanical) and Engine Coolant Fan Lower Shroud Replacement (Mechanical) .
Fill the engine coolant. Refer to Cooling System Draining and Filling (Vac-N-Fill) or Cooling System Draining and Filling (Static Fill) .

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.