Hey guys,

So, I was thinking the other day that my AC is iffy at best. I rarely use it, but when I do, it's not that impressive. Compared to the BMW's and such I drive at work, it blows. So, I looked into one of those recharge canister kits. Do those work well? I assume they can be used on our cars, however when I went to look for where it'd hook into, I couldn't outrightly find it. Maybe I was looking in the wrong place? Anyone have a how-to or anything on this? I'm on my phone, and it'd be a pain to search. The car has 75k on it, but again, the AC is likely only used probably 10 times a year.. Should it need charged yet, or does our AC just suck *****?

Thanks!!

 

No one? Seriously..

 

I completely agree with you, I'm having the dealer fix it. I realized this when I had a 2010 Cobalt rental a week ago. Have no idea why but my a/c hardly puts out any air on 4 let alone it being cold.

 

So I guess our AC just sucks ass? lol

 

you can buy the ac recharge kits, just make sure it has all the additives in it like sealer ect ext and all. The cobalt ac systems suck *****, from the factory they were filled a 1/2lb less than it should of been. so drain/discharge the system current, then refill the system with 1/2lb more than it says on the car or manual, and do it to the instrustions on the can. you will have no problem and it will work great, and im not kidding on the .5lb extra seriously gm undercharged the systems. used this before on few balts and other cars works great if you dont have a major leak, it will fix minor to small leask with the sealer in the kit in the can.

 

Sounds good man. But where do you hook it up to? I mean, in the engine bay.. Where is that low-side port?

 

don't drain the ac system. IF you do, you'll have to re-oil your compressor. And a car from the factory does not come low on freon. Or system on take 16 onces of from anyway, so if they did, it would literally be half empty. Get yourself a gauge, see if your low. If you are, add some.

 

Best bet is to have a mechanic do it. If you use one of those recharge kits, you could easily over pressurize the system which will cause expensive pieces to break. Then you have to get those fixed and get your system recharged anyway, so it's best to just have it done right the first time.

 

I don't know where you get your information on that one but half-a-pound overcharge on a system that takes .9 lbs to begin with would put your pressures SERIOUSLY out of range for proper operation. Are you using an A/C machine that doesn't compensate for the hoses or something?

I say this because I've never had a problem with charging to .9 lbs on any Cobalt. They always blow ice cold and do it more quickly than most GM small cars.

This.

 

It was a gm bulletin I'm serious 05-07s ask zspeed about it he can get you more info on it

 

I have an 06 with 75k miles, and mine gets used variably through the year. Still ice cold, never had to charge it. Sounding like you have a leak.

 

The low side is the bigger of the two lines. I haven't needed to find it yet so i'm not sure where it is on our cars. you could probably just go to auto zone and ask the guy to point it out for you. they aren't supposed to put it in for you (and i wouldn't let them try either) but he can show you where it goes. they also have a dvd for like 5 bucks or something that's pretty in depth

 

I think the low side is under the throttle plate on my car (06 SS/SC)

 

ive had a 07 g5 and 06 cobalt... the ac blowers went out in both cars... the g5 was in warranty the cobalt was not... ac worked great up till this on both cars... really in the g5 i never had to turn the ac on... i jus put it on cold and use the circulate inside button n it got pretty cold for me

 

I had two '06s and never saw that bulletin.. Just looked and it isn't there.

0.9 lbs is the standard charge. In a system that small you won't want anymore, either.

 

Man, I'm just used to BMW and Mercedes AC systems.. lol

I bought a can of that stuff and it came with a gauge, so we'll see what's up..

 

mine sucks too and so did my previous cobalt.

 

When you put it on recirculate the AC is turned on. That is why it was cold

 

On the LE5 the low side charge port is about an inch away from the dipstick.

 

Yeah, looked in my Chiltons. That is correct. The 2.4 has it on the front, right side. I'm assuming the 2.2's are the same. Sounds like the 2.0's are similar too..

 

yeah, my 2.2 is in the front right. Forget exactly where, its been awhile since I've messed with it.

 

Gonna go try this now I think..

 

Back from the dead, just did this on my 05 SS/SC with 81k miles and it went from just a cool breeze to a freezer with the Autozone recharge kit with the pressure gauge on the top of the tubing. Very happy with the recharge.

 

take it to the dealership and have them look at it for you. they will performance test it and diagnos why your ac isent blowing cold