How to bleed the air out of cooling system at home

If you've recently replaced a radiator hose or flushed your coolant, you probably need to know how to bleed the air out of cooling system before you take your car back out on the road. It might sound like a technical job meant only for mechanics, but it's actually something you can handle in your own driveway with a bit of patience. Leaving air trapped in your cooling system is a recipe for disaster because those little air pockets can cause your engine to overheat, even if you have plenty of coolant in the reservoir. ...

February 9, 2026 · 6 min · Schweitzer Paulinehorwits