Radiator Hose Replacement 2.2L VIN 4

1. Remove the coolant from the radiator so that the level is below the hoses being removed. Refer to Draining and Filling Cooling System .
2. Loosen the radiator hose clamps.



3. Disconnect the radiator hoses from the radiator.



4. Disconnect the upper radiator inlet hose from the coolant outlet.
5. Disconnect the lower radiator outlet hose from coolant pump.

Important: The 2.2L engine uses a spring-type (constant tensioner) clamp at the radiator hose connections. Install hoses on dry, unpainted surfaces in order to ensure proper sealing.

1. Place the radiator hose clamps loosely, on the ends of the hoses.



2. Connect the radiator hoses to the radiator.



3. Connect the radiator outlet hose to the coolant pump.

Connect the radiator inlet hose to the coolant outlet.

4. If service type radiator hose clamps are used:

Tighten
Tighten the radiator hose clamps to 2.5 N·m (22 lb in).

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.

5. Refill the cooling system to the proper level. Refer to Draining and Filling Cooling System .
6. Check the cooling system for leaks. Refer to Radiator Leak Testing .

Radiator Hose Replacement 4.3L

Caution: Do not remove the radiator cap while the cooling system is hot. Serious personal injury may result. Only remove the radiator cap from a cool engine.

1. Remove the coolant from the radiator until the level is below the hoses being removed. Refer to Draining and Filling Cooling System
2. Loosen the radiator hose clamps.



3. Disconnect the radiator hoses from the radiator.



4. Disconnect the upper radiator inlet hose from the coolant outlet.



5. Disconnect the lower radiator outlet hose from the coolant pump.

Important: The 4.3L uses a spring-type (constant tensioner) clamp at the radiator hose connections. Install the hoses on dry, unpainted surfaces for proper sealing.

1. Place the hose clamps loosely on the ends of the hoses.



2. Connect the hoses to the radiator.



3. Connect the lower radiator outlet hose to the coolant pump.



4. Connect the upper radiator inlet hose to the coolant outlet.

Position the upper radiator hose around the generator (as shown).

5. Tighten the service type radiator hose clamps, if used.

Tighten
Tighten the radiator hose clamps to 3.0 N·m (22 lb in).

Refer to Fastener Tightening Noice in General Information.

6. Refill the system with coolant to the proper level. Refer to Radiator Replacement
7. Check the cooling system for leaks. Refer to Radiator Leak Testing (On and Off Vehicle)