were is bleed screw for coolant system

on the 3.0 i take out the t stat and fill the cooling system till coolant is full where the t stat goes. then install the t stat and there is very little air in the system. Roy

Many manufacturers don't provide an air bleed screw (some don't even supply a drain screw).I don't remember seeing one on the Caravan. Refilling the cooling system should be straight forward fill the radiator and expansion tank with approved coolant, turn on the heater valve to full hot to get circulation through the heater core, open cooling system bleed screws (if applicable), burp the coolant hose (ie squeeze the lower hose as you fill the cooling system) to purge air as you are filling the cooling system. Start the engine. After 60 seconds of running, switch off the engine, top up cooling system if required,then run engine until fan comes on (watch temp gauge turn off at any time if over heating occurs) allow engine to cool,then top up coolant as required and drive vehicle. Recheck for leaks and top up as required after road test,