Bleeding the cooling system removes trapped air pockets that get in after a coolant change or repair, so coolant can flow freely and the engine stays cool. Trapped air can cause overheating, weak heat from the vents, and a gurgling sound. We properly burp the system and top off the coolant to make sure everything circulates the way it should.
Find a TechnicianAir usually gets in whenever the system is opened, such as after a coolant flush, a radiator or hose replacement, or a water pump or thermostat job. Bleeding removes that air so coolant can circulate properly.
Trapped air can cause hot spots and overheating, weak or cold heater output, and a gurgling noise. Properly bleeding the system prevents these problems and protects your engine.
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