2024 Chevrolet Equinox — A/C Refrigerant & PAG Oil Specs

Quick answer

• Refrigerant: R-1234yf (factory fill)
• Full system charge: ~15.9 oz (≈450 g). Always verify on the underhood A/C label; minor variation by option code is possible.
• Oil type/amount: PAG 46 (SP-A2 for R-1234yf), total system oil ≈4.0–4.1 oz (≈118–120 mL). Follow OEM component-specific refill amounts if parts are replaced.
• Service port locations:
  • Low side: On the larger-diameter suction line near the firewall (passenger side of engine bay), typically close to the accumulator/evaporator outlet.
  • High side: On the smaller-diameter liquid line near the condenser at the front, usually by the right/passenger-side radiator support.

Why R-1234yf matters

R-1234yf is the federally mandated successor to R-134a on most 2014+ vehicles, and by 2024 nearly all new U.S. models (including the Equinox) use it. Key points:

• Environmental and regulatory: R-1234yf has a far lower global warming potential than R-134a. The EPA and global regulations have pushed the industry toward yf to cut greenhouse gas impact.
• Cost: Expect R-1234yf refrigerant to be significantly more expensive per ounce than R-134a. That’s normal and driven by production and licensing.
• Equipment: Recovery/recycling and charging require R-1234yf-specific machines, fittings, and certified hoses. Do not attempt to retrofit fittings or use universal cans.
• Safety: R-1234yf is mildly flammable (A2L). Use the correct equipment and ventilation, and avoid ignition sources.

Recharge procedure (high-level)

• Verify the spec: Confirm the exact charge on the underhood HVAC label. While ~450 g (15.9 oz) is common for the 2024 Equinox, build variations can exist.
• Fix leaks first: A/C systems are sealed. If refrigerant is low, there’s almost always a leak. UV dye/electronic leak detection and, if needed, nitrogen pressure testing are the right steps before recharging.
• Evacuate properly: After repairs, connect an R-1234yf recovery machine, recover any remaining refrigerant, then pull a deep vacuum (typically 30–45 minutes depending on conditions) and verify it holds (no decay) per OEM procedure.
• Charge by weight, not pressure: Use a calibrated R-1234yf machine to charge the exact weight specified on the label. Do not “top off” by pressures—ambient temperature and fan speeds skew readings.
• Oil management: If you replaced components, add the OEM-specified PAG 46 (SP-A2) oil amount for that component. Otherwise, do not add oil blindly. Total system oil is about 118–120 mL.
• Final checks: With the engine and A/C on, confirm condenser fan operation, observe low/high-side pressures with the correct machine, and verify vent temps and blend/recirc operation.

Common A/C problems for this vehicle

• Condenser damage/restrictions: The front-mounted condenser can be vulnerable to road debris. Bent fins or impact can reduce heat exchange, causing high head pressures and weak cooling.
• Compressor control and internal wear: Modern variable-displacement compressors can suffer from control valve sticking or internal wear if the system ran low on refrigerant/oil. Symptoms include short-cycling, high-side pressure spikes, or no cooling at idle.
• Evaporator core or line leaks: Gradual loss of cooling over months often traces to tiny leaks at crimps or the evaporator. UV dye from the factory helps pinpoint leaks with a UV lamp.
• Condenser fan or relay issues: Insufficient airflow at low speeds leads to warm air at stops but cooler air on the highway.
• Cabin air filter or blend door faults: A clogged filter or stuck blend/recirc doors can mimic an A/C problem by restricting airflow or mixing hot and cold air.

OEM service info

For exact charge, oil balance, and component-specific oil quantities, consult GM Service Information (SI) for the 2024 Equinox. GM SI provides:

• Underhood label specs and permissible charge tolerance
• Vacuum/charge procedures for R-1234yf
• Oil balancing amounts when replacing the compressor, condenser, evaporator, or lines
• Leak test procedures (dye, electronic detectors, nitrogen)

When to call a pro

• You don’t have an R-1234yf-certified recovery/charge machine
• The system won’t hold vacuum (persistent leak)
• After a compressor or multi-component replacement (oil balancing is critical)
• Electrical faults with the compressor control, condenser fan, or HVAC module

Safety disclaimer: Servicing mobile A/C systems that use R-1234yf requires EPA Section 609 certification and R-1234yf-specific equipment. Follow all OEM, EPA, and SAE J2845 procedures. If in doubt, stop and consult a professional.

Find a certified A/C shop on Repairius.