REFILLING COOLING SYSTEM
| WARNING | Do not remove cylinder block drain plugs or loosen radiator draincock with system hot and under pressure. Serious burns from coolant can occur. |
Clean cooling system prior to refilling. See Cooling - Standard Procedure .
- Install cylinder block drain plugs. Coat the threads with Mopar® Thread Sealant with Teflon.
- Close radiator petcock.
- Fill cooling system with a 50/50 mixture of water and antifreeze. Refer to «Vehicle Quick Reference/Capacities and Recommended Fluids - Description»(ref-352631-S01117877842010010600000) .
- Fill coolant reserve/overflow tank to MAX mark.
- Start and operate engine until thermostat opens (upper radiator hose warm to touch).
- If necessary, add antifreeze mixture to the coolant reserve/overflow tank. Refer to «Vehicle Quick Reference/Capacities and Recommended Fluids - Description»(ref-352631-S01117877842010010600000) . This is done to maintain coolant level between the MAX and MIN marks. The level in the reserve/overflow tank may drop below the MIN mark after three or four warm-up and cool-down cycles.
REVERSE FLUSHING
Reverse flushing of the 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.
REVERSE FLUSHING RADIATOR
Disconnect the radiator hoses from the radiator inlet and outlet. Attach a section of radiator hose to the radiator bottom outlet fitting and insert the flushing gun. Connect a water supply hose and air supply hose to the flushing gun.
| CAUTION | Internal radiator pressure must not exceed 144.79 kPa (21 psi) as damage to radiator may result. |
Allow the radiator to fill with water. When the radiator is filled, apply air in short blasts. Allow the radiator to refill between blasts. Continue this reverse flushing until clean water flows out through the rear of the radiator cooling tube passages.
REVERSE FLUSHING ENGINE
Drain the cooling system. Remove the thermostat housing and thermostat. Install the thermostat housing. Disconnect the radiator upper hose from radiator and attach the flushing gun to the hose. Disconnect the radiator lower hose from the water pump and attach a lead-away hose to the water pump inlet fitting.
Connect the water supply hose and the air supply hose to the flushing gun. Allow the engine to fill with water. When the engine is filled, apply air in short blasts, allowing the system to fill between air blasts. Continue until clean water flows through the lead away hose.
Remove the lead away hose, flushing gun, water supply hose and air supply hose. Remove the thermostat housing and install the thermostat. Install the thermostat housing with a replacement gasket. Refer to Thermostat Replacement. See THERMOSTAT . Connect the radiator hoses. Refill the cooling system with correct antifreeze/water mixture. See Cooling - Standard Procedure .