Is this where I refill 134a freon?

[BatKing]

Hi,

my AC is acting. the driver side is cooler than passenger side and cooling power is a lot weaker than last summer. Also the AC is making some noise which I don't recall was there last summer.

From search the forum, it seems refill the freon will fix the cooling issue if no major leak is involved.

However, I can't find a DIY or any instructions on Where to add the 134A. the best I can get is the following post

http://www.xoutpost.com/509902-post14.html

but mine is a 04 Aug 4.4i and the engine bay look different than the above post.

is the following picture is where I should connect the bottle of 134A?


I just simply open the black cap and connect the 134A host to refill?

THanks