Sierra 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
Thermostat Bypass Hose: Service and Repair
Turbocharger Coolant Bypass Valve Replacement
Turbocharger Coolant Bypass Valve Replacement (6.6L (LLY) Engine)
Removal Procedure
1. Remove the intake manifold cover.
2. Drain the cooling system.
3. Reposition the coolant inlet hose clamp.
4. Disconnect the turbocharger coolant inlet hose from the turbocharger bypass valve.
5. Remove the turbocharger bypass valve and washer.
Installation Procedure