Cooling System Bleeding
CAUTION:
When filling cooling system, use coolant containing ALUGARD 340-2.
- Close radiator drain hand tight only. Ensure block drain plugs are in place. Attach one end of a 1/4" I.D. clear, 48" long hose, to air bleed valve located on water outlet connector at front of engine. See Fig 1. Routing hose away from drive belt, drive pulleys and fan motors, place open end of hose into a clean container.
- Install Filling Aid Funnel (8195). Using a clip, pinch off overflow hose that connects 2 chambers of coolant bottle. Open bleed valve. Fill cooling system using a 50/50 mix of MOPAR® Extended Life Coolant (or equivalent) and distilled water. Slowly fill coolant pressure bottle until a steady stream of coolant flows from hose attached to bleed valve. Gently squeeze upper radiator hose until all air is removed from system.
- Close bleed valve and continue filling to top of filling aid funnel. Remove clip from overflow hose. Allow coolant in filling aid funnel to drain into overflow chamber of pressure bottle. Install cap on coolant pressure bottle. Remove hose from bleed valve.
- Drive vehicle for one hour. After one hour of normal driving, a drop of coolant level in pressure bottle may occur. Top off coolant as necessary. If engine cooling system overheats and pushes coolant into overflow side of bottle, coolant will be sucked back into cooling system only if pressure cap is left on bottle. If pressure cap is removed, vacuum path between 2 bottle chambers will be broken, preventing return of coolant to cooling system.
- Outboard chamber of coolant bottle is only used to recover coolant in event of an overheat and should normally be empty. If there is coolant in overflow side of coolant bottle, disconnect end of overflow hose at fill neck and lower it into a clean container. Allow coolant to drain into container until overflow side of bottle is empty.