Does anyone know where the high end port is for the ac lines? I know where the low end port is, but I can't find the high end port.

Reason I'm asking is because my low end port cap isn't screwed on there, but instead just has the black cap (looks bigger like for the high end port) sitting on there and can just be pulled off. In turn I think this is allowing my freon to leak.

Can anyone please also check their low end port cap and see if it's screwed on their or just sitting on top of the valve?

Thanks.




Angelo