Cleaning/Flushing Cooling System
CLEANINGCAUTION: Internal radiator pressure must not exceed 138 kPa (20 psi) as damage to radiator may result.
Reverse flushing of cooling system is the forcing of water through the cooling system. This is done using air pressure in the opposite direction of normal coolant flow. It is usually only necessary with very dirty systems with evidence of partial plugging.
1. Drain cooling system. Remove thermostat housing and thermostat. Install thermostat housing.
2. Connect a suitable cooling system flusher and follow instructions supplied with flusher.
INSPECTION
After performing a cleaning/flush procedure, inspect all hoses, clamps and connections for deterioration and leaks. Inspect radiator and heater core for leaks.