How to Vacuum Fill Your Cooling System (Astro 78585 Review and Instructions)

In this video I show you how to vacuum fill your cooling system to eliminate air pockets in the cooling system that can cause overheating problems. To do this I will be using Astro Pneumatic part number 78585. All of these vacuum filling units all work the same way. The tool draws a vacuum on the cooling system removing all air from the cooling system. Next you attach a suction line to draw the antifreeze or coolant into the cooling system when the valve is opened. This procedure will eliminate the need to burp the air from your cooling system. This Astro Pneumatic Master Cooling System Service Kit also has the ability to pressure test your cooling system and some radiator caps.

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