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Drive Belt Tensioner: Service and Repair



Drive Belt Tensioner Replacement

Removal Procedure

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26 - 3.8L) (Service and Repair)Battery Negative Cable Disconnection and Connection (LS4 - 5.3L) (Service and Repair) .
2. Drain the cooling system. Refer to Cooling System Draining and Filling (L26 - 3.8L GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (L26 - 3.8L Static Fill) (Service and Repair) .
3. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement (L26 - 3.8L) (Service and Repair) .
4. Remove the drive belt. Refer to Drive Belt Replacement (Service and Repair) .
5. Remove the generator. Refer to Generator Replacement (L26 - 3.8L) (Generator Replacement).
6. Remove the heater hose adapters with the heater hoses from the drive belt tensioner. Refer to Heater Inlet Hose Replacement (L26 - 3.8L) (Heater Inlet Hose Replacement) and to Heater Outlet Hose Replacement (L26 - 3.8L) (Heater Outlet Hose Replacement) .




7. Remove the drive belt tensioner bolts.
8. Remove the drive belt tensioner.
9. If replacing the drive belt tensioner, remove the thermostat bypass upper and lower pipe assemblies.



Installation Procedure

1. If replacing the drive belt tensioner, lubricate the thermostat bypass upper and lower pipe assembly seals with engine coolant and install the upper and lower pipe assemblies.




2. Install the drive belt tensioner.

Notice: Refer to Fastener Notice .

3. Install the drive belt tensioner bolts.

Tighten the bolts to 50 N.m (37 lb ft).

4. Install the heater hose adapters with the heater hoses to the drive belt tensioner. Refer to Heater Inlet Hose Replacement (L26 - 3.8L) (Heater Inlet Hose Replacement)Heater Inlet Hose Replacement (RPO LS4 - 5.3L) (Heater Inlet Hose Replacement) and to Heater Outlet Hose Replacement (L26 - 3.8L) (Heater Outlet Hose Replacement).
5. Install the generator. Refer to Generator Replacement (L26 - 3.8L) (Generator Replacement) .
6. Install the drive belt. Refer to Drive Belt Replacement (Service and Repair) .
7. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement (L26 - 3.8L) (Service and Repair).
8. Fill the cooling system. Refer to )Cooling System Draining and Filling (L26 - 3.8L GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (L26 - 3.8L Static Fill) (Service and Repair) .
9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26 - 3.8L) (Service and Repair) .


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