Why does 2011 Chevrolet Aveo A/C quit working after about an hour?

30

Asked by Jul 04, 2014 at 12:02 PM about the 2011 Chevrolet Aveo LT

Question type: Maintenance & Repair

Bought a 2011 Aveo.  The A/C works OK for about an hour, then loses cooling.  Fan
blows, but temperature increases from 40 deg to 60 deg and stays there.  Shut off engine
for about 10 minutes and cooling comes back, then quits again after about 30 minutes.  
Each time you shut off A/C, it comes back and works, but only briefly.  Had the
compressor replaced, but didn't resolve.  Any ideas?

15 Answers

70,255

Could be a sticking compressor cycling switch. HTH. -Jim

1 of 1 people found this helpful.
30

Bought the car from Carmax and they claim there is no compressor cycling switch on this model. They say it's internal to the compressor. Does that sound possible?

2 of 2 people found this helpful.
70,255

Just looked it up. It's referred to as a "refrigerant pressure sensor". It's Delco part number 1551289. HTH. - Jim

70,255

It screws into the low side refrigeration line. -Jim

30

OK, thanks all for your help. Sounds like Carmax doesn't know what they're talking about. Jim, will give them the part# you have and see what they say. Will advise. Tks, Joe.

1 of 1 people found this helpful.
70,255

You're welcome, Joe. Glad to help. -Jim

The aveo has 2 possible compressors depending on the engine size the 1.6 liter uses a variable displacement5 cylinder compressor aka V5 this compressor does not use a temperature sensor to cycle the compressor it varies a wobble plate inside the compressor to regulate the pressures to avoid icing up the fix would be to replace the compressor drier and expansion valve

30

Draggin51, thanks for the advice. Carmax claims they have replaced the compressor and the Delcco refrigerant pressure sensor Jim advised about. AC system still freezing up after about 1 hours operation. I'm at my wits end. Don't know what else to do. If they replaced the compressor, would that include the drier? Thanks, Joe.

15

My 2011 Aveo had same issue. Turned out it was a bad expansion valve and a bad compressor. Replaced both and now ac back to normal.

30

Papa2100, thanks for your response. Do you think it's possible the 2011 Aveo's had poorly designed compressors? The first thing they did was replace the compressor. After that I drove it on a 5 houor trip and it worked just fine. On the way back, it went back to only working for about an hour and started freezing up again. Could the new compressor have gone bad that quickly???

15

The expansion valve is what regulates how much freon comes in the evaporator. If you only changed the compressor but not the expansion valve then thats the problem. Your expansion valve is getting stucked and is freezing the evaporator. Change the expansion valve. That was my exact same issue.

15

Also, all vehicles from GM Korea have DAK compressors which are crap. I changed all my ac system with aftermarket brand compressor and parts and now works even better than stock original. Changing the compressor alone wont do it.

30

OK, it's all beginning to make some sense. About a year ago, Jim advised, "Just looked it up. It's referred to as a "refrigerant pressure sensor". It's Delco part number 1551289. HTH. - Jim". I looked up this part and gave it to Carmax, who claims they got one and installed it. I don't know if that's the expansion valve you're describing. But I had a sneaky suspicion it could be crappy parts (poorly designed compressor). It sounds like replacing with aftermarket parts might be the answer. Thanks for your advice.

15

I bought my Aveo from Carmax. They are good selling cars. They suck at fixing them. I have my own mechanic from Your Mechanic .com. Get an independent mechanic. Check your mechanic .com.

where is the expansion valve located? how can I get to it? I have enough pressure in the system, but no power on the clutch. Relays and pressure switch are bypassed, what else could be the problem?

Your Answer

Aveo

Looking for a Used Aveo in your area?

CarGurus has 1,592 nationwide Aveo listings starting at $1,999.

ZIP:

Chevrolet Aveo Experts

  • #1
    Tom Demyan
    Reputation
    330
  • #2
    martco
    Reputation
    150
  • #2
    tennisshoes
    Reputation
    150
View All

Related Models For Sale

Used Chevrolet Sonic
154 Great Deals out of 11,828 listings starting at $2,985
Used Chevrolet Cruze
896 Great Deals out of 59,248 listings starting at $3,490
Used Ford Focus
725 Great Deals out of 52,700 listings starting at $999
Used Chevrolet Cobalt
44 Great Deals out of 3,606 listings starting at $995
Used Toyota Corolla
901 Great Deals out of 56,951 listings starting at $1,099
Used Honda Civic
814 Great Deals out of 72,402 listings starting at $1,000
Used Chevrolet Malibu
1,085 Great Deals out of 71,645 listings starting at $1,896
Used Ford Fiesta
142 Great Deals out of 16,509 listings starting at $2,500
Used Nissan Versa
279 Great Deals out of 21,213 listings starting at $2,200
Used Hyundai Elantra
481 Great Deals out of 41,676 listings starting at $2,295
Used Toyota Yaris
63 Great Deals out of 3,086 listings starting at $2,200
Used Hyundai Accent
157 Great Deals out of 13,544 listings starting at $1,998
Used Kia Rio
63 Great Deals out of 6,905 listings starting at $2,475
Used Chevrolet Impala
507 Great Deals out of 33,707 listings starting at $950

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.