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Refrigerant 134a or 1234yf??

UrbanRage
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UrbanRage Enthusiast

UrbanRage

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I have a 2017 GMC Sierra with the 5.3l. Last week, I noticed that the A/C was blowing cool but not cold air. When I was making the appointment with the dealership, the service rep asked if I knew which refrigerant my truck has because that would affect the cost by several hundreds. My immediate question was, "How can I find out which one is in my truck?" Her reply was that we wouldn't know until the truck was in the shop. 

 

I didn't see an A/C system name plate under the hood. Is there another way to know if I have 134a or 1234yf refrigerant?

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

The factory sticker is on the plastic cover over the core support directly behind the grill, basically right in front of your face when you open the hood.

 

I got $1 on it being 1234yf, my 2016 is still R134a.

UrbanRage Enthusiast

UrbanRage

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Holy ******... I can't believe that I missed the large black sticker with the snowflake on it. 

 

I'd send you the $1, but since it is 1234yf, I'm going to need every dollar for the repair.. :) 

  • 2 years later...
  • 6 months later...
Sam Corne Enthusiast

Sam Corne

Posted
Posted

2017 silverado 1500 5.3. Sticker calls for R134A but I bought the R134A manifold and hose kit but they will not connect to the high and low side ports. Help!

64BAwagon Senior Enthusiast

64BAwagon

Posted
Posted

AC is one thing I wont mess with. Unless you have the equipment and training its easy to do more harm than good. The 1234A is stupid expensive. My son is ASE certified in vehicle AC systems but he doesnt have access to the equipment. 

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