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Chevrolet Cobalt: Climate Control/AC

16 messages,  Last post on Sep 22, 2011 at 11:57 PM

You are in the Chevrolet Cobalt Forum.

What is this discussion about? Chevrolet Cobalt, Heating / Cooling, Coupe, Sedan

Messages Page 3 of 3

#12 of 16 Re: 2006 Cobalt A/C problems [mitch49] by imidazol97

Aug 23, 2010 (5:59 pm)

Replying to: mitch49 (Aug 23, 2010 8:05 am)
Need to get a qualified AC technician on the compressor who knows what to do servicing the AC.
 
The quantity of oil in the new compressor needs to be verified.
 
The system needs to be evacuated.
 
The system needs to have 0.9 lb (14.4 oz) of R134a as a full charge. You put in 3 times the amount.
 
Because of the compressor failure, a qualified tech should know if some kind of filter needs to be put into the system to catch particles from a compressor depending on how it broke up. A particle may have partly blocked the expansion valve. But hte system is so overcharged it would be hard to tell.

#13 of 16 cobalt a/c compressor inop by fastmonteus

Aug 20, 2011 (4:23 pm)

i,m working on a o5 cobalt the a/c compressor wont come on i think its the high pressure switch its reading 400 psi on the scanner but when i hook the gauges up its 150 psi on high 32 on low so im thinking bad pressure switch to get the compressor to run you have to touch relay contacts together then a/c cools does that seem like a bad switch

#14 of 16 07 cobalt A/C odd problem by lateraluz

Sep 08, 2011 (9:59 pm)

after about a year of not using the a/c because i thought it had something wrong with it, finally had the cash to actually look into it, so to see if it was a leak i put an 18oz can of freon, and the a/c started to work, the compressor worked and it was actually cooling but i thought not enough and the gauge was reading about 30psi after i put the can, i waited a couple of days to see if it workd, and it did, but since it wasnt cooling enough i decided to put an additional 12oz can, now the gauge reads about 70psi which is in the red! and now it doesnt cool, and when i turn off the car, it sounds almost like if the car was still on, then it stops! is this normal? what did i do wrong? how can i fix it? hope you guys can help me, thanks!

#15 of 16 2006 Chevy Cobalt A/C issues by jmc672

Sep 22, 2011 (11:57 pm)

#16 of 16 2006 Chevy Cobalt A/C issues by jmc672

Sep 22, 2011 (11:57 pm)

So I have been looking thru all of the posts, and I have yet to find advice on my issue. My A/C only works sometimes.... the fuse isnt bad, and when it works it doesnt really sounds like the blow is bad...but its been a long while since i have been able to really hear it...last time i rememeber hearing it my dial was on 0 and running on high, then i switched it to 4 and it stopped working... this problem started to happen after my car's battery was drained and i had to jump it. does anyone have any answers to my problem?

Messages Page 3 of 3

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