2016 GMC Acadia A/C Refrigerant and Oil Specifications

Quick answer: 2016 GMC Acadia A/C specs

• Refrigerant type: R-134a
• System charge amount: 37.0 oz (1050g)
• PAG oil type: PAG 46
• PAG oil capacity: 9.0 oz (266 ml)
• Low-side service port location: Near the firewall, on the passenger side of the engine bay.
• High-side service port location: In front of the radiator, near the hood latch.

Why R-1234yf matters

While the 2016 GMC Acadia uses the older R-134a refrigerant, many newer vehicles have transitioned to R-1234yf. This is due to the EPA's mandate to phase out refrigerants with high global warming potential (GWP). R-1234yf has a much lower GWP than R-134a, making it a more environmentally friendly option.

This transition has several implications for both DIYers and professional technicians:

• Cost: R-1234yf is significantly more expensive than R-134a. This can lead to higher A/C service costs for newer vehicles.
• Equipment: Servicing R-1234yf systems requires a dedicated recovery and charging machine. Cross-contaminating the two refrigerants can cause damage to A/C components and service equipment.
• Availability: While R-134a is readily available, R-1234yf may be less common, although this is changing as more vehicles adopt the new standard.

Recharge procedure

Recharging your Acadia's A/C system is more complex than simply adding a can of refrigerant. To ensure proper performance and longevity of the A/C components, it's crucial to follow the correct procedure:

1. Evacuation: The system must be fully evacuated using a vacuum pump. This removes any air and moisture that may have entered the system, which can cause corrosion and reduce cooling efficiency.
2. Charge by weight: The system must be charged with the precise amount of refrigerant specified by the manufacturer. Overcharging or undercharging can lead to poor cooling performance and damage to the compressor.
3. Pressure readings: While pressure readings can be a helpful diagnostic tool, they should not be used to determine the correct refrigerant charge. Always charge by weight.

Common A/C problems for this vehicle

The 2016 GMC Acadia is known for a few common A/C issues:

• Compressor failure: The A/C compressor is a common failure point on this generation of Acadia. Symptoms include a lack of cold air, strange noises from the engine bay, and a seized compressor clutch.
• Condenser leaks: The condenser, located in front of the radiator, is susceptible to damage from road debris. A leaking condenser will result in a loss of refrigerant and poor cooling performance.
• Evaporator leaks: The evaporator, located inside the dashboard, can also develop leaks. This is a more labor-intensive repair, as the dashboard must be removed to access the evaporator.

When to call a pro

While some basic A/C maintenance can be performed by a savvy DIYer, it's often best to leave A/C repairs to a certified professional. A/C systems are complex and require specialized equipment to service properly. Additionally, the EPA requires that anyone who services or repairs motor vehicle A/C systems be certified in refrigerant recovery and recycling.

Disclaimer: The information on this page is for reference only. Always consult your vehicle's service manual or a certified technician for specific repair information. It is illegal to release refrigerant into the atmosphere. You must be EPA 609 certified to service automotive A/C systems.

Find a certified A/C shop on Repairius.