Dear all,

I am the new guy in this forum, and it's nice to meet you. The weather is getting heat up this week, and my A/C is not working so well, since I purchased my 8 as used car, so I went to the Autozone bought a bottle of "A/C booster" for the car, and I could not find the "A/C low side service port" of the vehicle. So here I am to seek for your help and advices, and better yet, could anyone post a picture of the location of the service port please? Thank you very much in advance.

Welcome new guy :beerchug: - nice to meet you 2 :).

Low side is just to the right of the windshield washer reservoir near the firewall, high side is just to the right of the coolant reservoir. Both have screw off caps that have the letter "L" and "H" respectively.

I wonder how well and how long the booster stuff will work for you? Let us know. How much for the can?

I would not put something called "booster" into the system. Check the pressure. If it's low, then just put in straight refrigerant.

I don't think there's a sight glass like in the old R-12 systems. But the rack at Autozone where you bought the booster should have some kind of gauge.

Ken

Not sure what this "booster" stuff is, but from what I see out there, it's just a can of refrigerant plus a couple of ounces of oil, which is normal -- there is always refrigerant plus oil in the system. The "booster" adjective seems to be marketing hoopla due to the use of a synthetic oil. Maybe there's some other magic surfactant in there, but I doubt it makes much difference. Since r-134a doesn't have the heat-exchange properties of the old Freon, seems to be an attempt by marketing to promote their as not sucking as badly as "regular" r-134a.

Anyway, I'd agree you do not want to overcharge the system past the normal range, and you need to check the pressure in order to determine that. If it's low, then there is a leak and your addition may be short-lived. If it's not low you don't need to add anything.

If yours is an older RX-8 you should search for a thread on "reprogramming" the AC amplifier to see if it applies to you. That made all the difference for my AC. Some people also wrap the "frosty pipe" with insulation material.

ah....

http://www.rx8club.com/showthread.php?p=2362106&highlight=ac+not+cool#post2362106

Thank you very much for the replies, you guys, I really appreciate it. As stated by the fellow members in this thread, this can of so-called "booster" thing is actually a can of refrigerant plus additive in it by the manufacture, but however, it does the job as it promised though, I do feel engine drag has been reduced when the A/c is on, or maybe it's just about time for my car to get a refill.

Thank you for your help anyway, especially to rx8cited.:biggthump

Wankel_8,
Glad to assist :bigok:.

So how much did the can cost? :dunno:

Let us know if this turns out to be a short term fix.