Drive Belt Tensioner: Service and Repair

Removal Procedure





1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Starting and Charging.
2. Drain the engine coolant from the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
3. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement in Cooling System.
4. Remove the drive belt. Refer to Drive Belt Replacement
5. Remove the generator. Refer to Generator Replacement in Starting and Charging.
6. Disconnect the heater hose adapters with heater hoses from the drive belt tensioner. Refer to Heater Hoses Replacement in Heating and Air Conditioning.
7. Remove the drive belt tensioner bracket 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 in Service Precautions.

3. Install the drive belt tensioner bracket bolts.
Tighten the drive belt tensioner bolts to 50 Nm (37 ft. lbs.).
4. Connect the heater hose adapters with heater hoses to the drive belt tensioner. Refer to Heater Hoses Replacement in Heating and Air Conditioning.
5. Install the generator. Refer to Generator Replacement in Starting and Charging.
6. Install the drive belt. Refer to Drive Belt Replacement.
7. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement in Cooling System.
8. Fill the cooling system with engine coolant. Refer to Draining and Filling Cooling System in Cooling System.
9. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Starting and Charging.