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 MANUALSCHEVROLET2012EXPRESS 3500 V8-4.8LREPAIR AND DIAGNOSISMAINTENANCEHOSESRADIATOR HOSESERVICE AND REPAIRRADIATOR OUTLET HOSE REPLACEMENT
2012 Chevrolet Express 3500 V8-4.8L
Radiator Outlet Hose Replacement
2012 Chevrolet Express 3500 V8-4.8LSECTION Radiator Outlet Hose Replacement
Radiator Outlet Hose Replacement (LR4, LM7, LQ4)
Special Tools
J 38185 Hose Clamp Pliers
Removal Procedure
1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) Cooling System Draining and Filling (Static Fill)Cooling System Draining and Filling (Vac N Fill) Cooling System Draining and Filling (Vac N Fill)Cooling System Draining and Filling (Static Fill Diesel) Cooling System Draining and Filling (Static Fill).
2. Remove the clamp at the radiator outlet using the J 38185.
3. Remove the radiator outlet hose clamp at the engine using the J 38185.
4. Remove the radiator outlet hose clamp at the coolant recovery reservoir using the J 38185.
5. Remove the radiator outlet hose from the coolant recovery reservoir.
6. Remove the radiator outlet hose from the radiator.
7. Remove the radiator outlet hose from the engine.
8. Remove the radiator outlet hose (4).
Installation Procedure
1. Install the radiator outlet hose (4).
2. Install the radiator outlet hose to the engine.
3. Install the radiator outlet hose to the radiator.
4. Install the radiator outlet hose to the coolant recovery reservoir.
5. Install the radiator outlet hose clamp to the coolant recovery reservoir using the J 38185.
6. Install the radiator outlet hose clamp to the engine using the J 38185.
7. Install the radiator outlet clamp to the radiator outlet using the J 38185.
8. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) Cooling System Draining and Filling (Static Fill)Cooling System Draining and Filling (Vac N Fill) Cooling System Draining and Filling (Vac N Fill)Cooling System Draining and Filling (Static Fill Diesel) Cooling System Draining and Filling (Static Fill).
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.