2017 Chevrolet Silverado 1500: A/C Refrigerant & Oil

Quick answer

• Refrigerant type: R-1234yf
• Full system charge: 24 oz (680 g)
• PAG oil type: PAG 46
• PAG oil amount: 4.5 oz (133 mL)
• Low-side service port location: Near the firewall on the passenger side
• High-side service port location: In front of the radiator on the passenger side

Why R-1234yf matters

Starting in 2014, General Motors began transitioning its vehicle fleet from R-134a to the more environmentally friendly R-1234yf refrigerant. This new refrigerant has a much lower global warming potential (GWP) than its predecessor, but it also comes with some significant differences that vehicle owners should be aware of. R-1234yf is more expensive than R-134a, and it requires special equipment for service and repair. Additionally, R-1234yf is not compatible with R-134a systems, so it is important to use the correct refrigerant and oil when servicing your vehicle's A/C system.

Recharge procedure

Recharging your vehicle's A/C system is not as simple as just adding more refrigerant. It is important to first evacuate the system to remove any air and moisture that may have accumulated. This is a critical step, as even a small amount of air or moisture can cause damage to the A/C system. Once the system has been evacuated, it can then be recharged with the correct amount of refrigerant by weight, not by pressure. It is important to use a digital scale to accurately measure the amount of refrigerant being added to the system. Overcharging or undercharging the system can lead to poor performance and even damage to the A/C components.

Common A/C problems for this vehicle

The most common A/C problems for the 2017 Chevrolet Silverado 1500 are compressor failures, condenser issues, and evaporator leaks. The A/C compressor is the heart of the system, and it is responsible for pumping the refrigerant throughout the system. A failing compressor can cause a variety of problems, including no cold air, strange noises, and even a seized compressor clutch. The condenser is located in front of the radiator, and it is responsible for dissipating the heat from the refrigerant. A damaged or clogged condenser can cause the A/C system to overheat, which can lead to a loss of cooling. The evaporator is located inside the passenger compartment, and it is responsible for cooling the air before it is blown into the cabin. A leaking evaporator can cause a loss of refrigerant, which will result in no cold air.

When to call a pro

If you are not comfortable performing your own A/C repairs, it is best to leave it to a professional. A certified A/C technician will have the knowledge and experience to properly diagnose and repair any problems with your vehicle's A/C system. They will also have the proper equipment to safely handle and dispose of the refrigerant.

Disclaimer: It is important to note that you must be EPA 609 certified to legally purchase and handle refrigerants. If you are not certified, you should not attempt to service your vehicle's A/C system.

Find a certified A/C shop on Repairius.