We don't need no vacuum pump!

Just purge that air out.

How do they eliminate complaints from being posted from unhappy DIYers?

LOL 2:29 while letting audible gasses out of the valve… he stated he was convinced there was no air left in the system.

This guy is a genius.

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Vigilance. If they find a negative post, they delete it. They may also review all comments before posting them. Just because it’s posted doesn’t mean it appears to the public.

No.

A genius would have used a valve core replacement tool that doesn’t allow the refrigerant to escape or allows air to enter the system.

https://www.walmart.com/ip/Air-Conditioning-R134A-Valve-Core-Quick-Remover-Installer-High-Low-Pressure-Tool-Pressure-Side-Repair-Tools-Compressor-Tool/720330318?wmlspartner=wlpa&selectedSellerId=16330&adid=22222222227278381223&wl0=&wl1=g&wl2=c&wl3=338621150577&wl4=aud-566049426705:pla-660953532944&wl5=9019498&wl6=&wl7=&wl8=&wl9=pla&wl10=127538091&wl11=online&wl12=720330318&veh=sem&gclid=EAIaIQobChMI67bXlZSI5QIVBdvACh1akQG6EAQYBSABEgKxCfD_BwE

Tester

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Mr @Tester… Apparently you missed my sarcasm.