gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Thermostat Housing Crossover Replacement (LLY, LBZ)|Page 3553 > < Thermostat Housing Crossover Replacement (LLY, LBZ)
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6. Remove the oil fill tube bolts and the oil fill tube.
7. Disconnect the coolant temperature sensor electrical connector.
8. Remove the exhaust gas recirculation (EGR) coolant pipe. 

9. Remove the fuel pipe bracket bolt.

10. Disconnect the hose at the thermostat bypass pipe.
11. Disconnect the radiator inlet hose from the thermostat housing.
12. Remove the thermostat bypass bolts at the water pump.

Thermostat Housing Crossover Replacement (LLY, LBZ)|Page 3553 > < Thermostat Housing Crossover Replacement (LLY, LBZ)