Cooling System Flushing

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COOLING SYSTEM FLUSHING - HYBRID


NOTE: Dispose of old coolant and flushing water contaminated with antifreeze and cleaning chemicals in accordance with local, state or federal laws.
1. Remove the radiator. See - Radiator Removal/Installation.

CAUTION: Radiator internal pressure must not exceed 138 kPa (20 psi). Damage to the radiator can result.

2. Backflush the radiator with the radiator in an upside-down position with a high-pressure hose in the lower hose location.

3. Remove the thermostat housing. See - Service and Repair.


NOTE: Thermostat and housing are serviced as an assembly.

4. Position a high-pressure water hose into the engine through the engine return and backflush the engine.