What happens if I have air in my cooling system?
William Burgess
Updated on April 07, 2026
What happens if I have air in my cooling system?
When you have air in your coolant system, it causes steam pockets in the line which act almost like plugs preventing the coolant from continuing to flow. That’s why you end up with your engine overheating, because the coolant isn’t allowed to continue through or it moves very slowly.
What happens if you have air in your coolant system?
When there’s air inside the cooling system, coolant won’t be able to reach the critical components of your engine like the cylinder heads; thus, increasing the risk of overheating.
What happens if you don’t burp your cooling system?
If you don’t bleed the coolant system you can have air pockets in it. This can cause the gauge to spike and can lead to overheating. The coolant system can self-bleed some between the thermostat and over-flow tank, but to do it properly you should fill the coolant and run the car with the radiator cap off.
What happens if you don’t bleed air out of cooling system?
Why do you need a 90° air release valve?
Quickly vent exhaust air to the atmosphere or divert it to another place in your system to speed up the movement of equipment. The 90° elbow shape allows you to install them in tight spaces. Also known as quick exhaust valves. Control the flow of exhaust air while also regulating the exhaust air speed.
How does an air release valve work on a radiator?
An internal wire brush traps air bubbles and discharges them through the top relief port while allowing inline flow from the inlet to the outlet. Turn the key to manually vent radiators and heaters. Eliminate air pockets in your drinking water system with these valves.
When do you open an air release valve?
All meet ASME Code Section VIII for use with air and inert gas pressure vessels. These valves meet ASME Code Section VIII for use with water pressure vessels. Also known as T & P valves, these open when water temperature reaches 210° F or at the set pressure.
How does an inline air release valve work?
Inline Air-Release Valves for Water An internal wire brush traps air bubbles and discharges them through the top relief port while allowing inline flow from the inlet to the outlet.