gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Thermostat Bypass Pipes Replacement|Page 3678 > < Thermostat Bypass Pipes Replacement|Page 3676
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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

Thermostat Bypass Pipes Replacement|Page 3678 > < Thermostat Bypass Pipes Replacement|Page 3676