For 1990-2009 cars

### Removal Procedure

#### 5.7L Engine Only

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Reposition the hose clamps at the throttle body and radiator.
3. Remove the throttle body heater outlet hose from the throttle body.
4. Remove the throttle body outlet hose from the radiator.

### Installation Procedure

1. Install the throttle body outlet hose to the radiator.
2. Install the throttle body heater outlet hose to the throttle body.
3. Reposition the hose clamps at the throttle body and radiator.
4. Refill the cooling system. Refer to Cooling System Draining and Filling .