For 1990-2009 cars

## Radiator Hose Replacement 3.1 L

### Removal Procedure

Notice: When adding coolant, it is important that you use GM Goodwrench DEX-COOL™ coolant. If coolant other than DEX-COOL™ is added to the system, the engine coolant will require change sooner: at 50 000 km (30,000 miles) or 24 months.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Drain and recover the coolant. The coolant level must be below the hose which is to be removed

Refer to Cooling System Draining and Filling .

3. Disconnect the radiator inlet hose from the radiator and the thermostat housing.
4. Disconnect the engine inlet hose from the radiator, water pump and surge tank.

### Installation Procedure

Notice: Make sure the reference marks on the hoses and the radiator are lined up. A twist on the hose would place strain on the radiator fitting which could cause the fitting to crack or break.

1. Connect the engine inlet hose to the radiator, water pump and surge tank.
2. Connect the radiator inlet hose to the radiator and thermostat housing.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Connect the negative battery cable.

Tighten
Tighten the bolt to 16 N·m (12 lb ft).

4. Fill the cooling system.

Refer to Cooling System Draining and Filling .

5. Inspect the system for leaks.

## Radiator Hose Replacement 2.4 L

### Removal Procedure

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Drain and recover the coolant. The coolant level must be below the hose which is to be removed

Refer to Cooling System Draining and Filling .

3. Disconnect the radiator inlet hose from the radiator and the engine coolant outlet.
4. Disconnect the engine inlet hose from the radiator, coolant inlet pipe and surge tank.

### Installation Procedure

Notice: Make sure the reference marks on the hoses and the radiator are lined up. A twist on the hose would place strain on the radiator fitting which could cause the fitting to crack or break.

1. Connect the engine inlet hose to the radiator, coolant inlet pipe and surge tank.
2. Connect the radiator inlet hose to the radiator and engine coolant outlet.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Connect the negative battery cable.

Tighten
Tighten the bolt to 16 N·m (12 lb ft).

4. Fill the cooling system. Refer to Cooling System Draining and Filling .
5. Inspect the system for leaks.