Overheating After Replacing Radiator, Pump, Thermostat? Burp Coolant to Remove Air Pockets! So you just replaced something to fix your overheating cooling system, or maybe you flushed the coolant, and now it's still overheating! Sometimes, air pockets can form in the engine or hoses, which hurts the cooling capacity of the vehicle! In this video, Andy gives you some tips on how to remove air pockets from your car or truck's cooling system to ensure it runs at just the right temperature all the t