No a/c

Joe Mechanic Annapolis, Maryland Posted   Latest  
Question
HVAC
2012 Chevrolet Camaro 1LT 3.6L (LLT) 6-spd
No A/C

Hi, I'm not very good with hvac. But on a 2012 camaro the a/c is not blowing cold or even cool. Its just warm. But it is not as warm as the heat, so there is a difference in temp. I checked the blend door and the blend door actuator, and those are working fine, the compressor is kicking on also. But only for about 10 to 15 sec at a time. The in line is freezing cold and the other line is very hot. I dont know where to go from here...

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Genaro Owner/Technician
Hollywood, Florida
Genaro Default
 

Evaporator leak very common in that year camaro if that where the problem front windshield needs to come out to get to some bolts out that will hit the windshield

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Joe Mechanic
Annapolis, Maryland
Joe Default
 

Oh great

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Nate Owner
Santa Cruz, California
Nate Default
 

Have you checked the pressures in the system?

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Victor Owner/Technician
Doral, Florida
Victor Default
 

Check for a system blockage.

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Joe Mechanic
Annapolis, Maryland
Joe Default
 

Yes pressure checked and all normal.

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Nate Owner
Santa Cruz, California
Nate Default
 

Could you tell us what the pressures are? And, is the condensor cooling fan working?

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Dwight Owner/Technician
Oceanside, California
Dwight Default
 

Are you sure it's not low on a charge, from your description, looks like it's low.

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Rudy Technician
Montebello, California
Rudy Default
 

Joe- Always check the pressure and measure the refrigerant charge before doing anything else. A low charge can cause a whole host of issues......

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Joe Mechanic
Annapolis, Maryland
Joe Default
 

Pressure and charge are good

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JJ Technician
Quincy, Massachusetts
JJ Default
 

Is the blower on high while the compressor is cycling that quickly?

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Joe Mechanic
Annapolis, Maryland
Joe Default
 

Yes

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JJ Technician
Quincy, Massachusetts
JJ Default
 

Plug in a scan tool and make sure the pressure sensor reading agrees with your gauge readings. What are the actual pressures you're seeing when the compressor cycles on and off?

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Joe Mechanic
Annapolis, Maryland
Joe Default
 

I will do that then tomorrow and let you know! Thanks

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Eric Owner/Technician
Edgerton, Wisconsin
Eric Default
 

Joe, You need to do more than just state the pressure and charge is "good". In order for us to help you we need to know the actual system pressures, both high pressure and low pressure, vent temperature, at fan speed setting and engine rpm. These are all variables that can have a big effect on how well, or not well, an air conditioning system works. Did you check the system for trouble codes…

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Joe Mechanic
Annapolis, Maryland
Joe Default
 

I work a late shift tm so ill hook my scan tool (verus pro D10) and check everything and hook up the a/c machine again and get all the info.

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Martin Owner/Technician
Brooklyn, New York
Martin Default
 

I think Eric has summed it up. Good is not a measure in this case but follow through with the ton of advice and questions, you will have it sorted in no time.

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Ken Owner/Technician
Phoenix, Arizona
Ken Default
 

Very common for the air box door to break....all you scan data will look great because the actuator is moving.....just the door is not...have to remove the windshield...truly great engineering.

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Gil Technician
Fresno, California
Gil Default
 

I agree with all , pressure information required, and have done a few of these due to blend door , dumb set up , windshield has to come out, actuator motor moves but not door

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Charlie Owner/Technician
Freetown, Massachusetts
Charlie Default
 

You can remove the dash and heater box without removing windshield. It is a cheat but it works and causes no damage. The 2 bolts that come down from the top which require you to remove the windshield stick through the cross bar about a half inch. If you cut those off flush using an air saw or similar tool you can pick the bolts up high enough to clear and remove dashboard aand since the bolts…

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Helpful
Paul Mechanic
Harvey, Illinois
Paul Default
 

The only way to know for sure is to evacuate and do a recharge with a known good set up/scale. Both lines should be about thesame temperature in and out of evaporator, the refrigerant just changes state.

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Jerry Owner
Port Angeles, Washington
Jerry Default
 

Yes, you can gain access without removal of windshield as CS stated.

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James Technician
Newport, Kentucky
James Default
 

Hey Joe how did you resolve this, could you give us a closing post

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