Bleeding Coolant System
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 TechnicianCommon causes
- Air pockets left after a coolant flush or refill
- Air introduced during a radiator or hose repair
- Trapped air after replacing the water pump or thermostat
- Low coolant level letting air enter the system
- Improper fill that didn't fully purge the system
Frequently asked questions
Why does air get into the cooling system?
Air 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.
What happens if I don't bleed the air out?
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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