2017 Chevrolet Equinox Coolant Capacity & Type

The 2017 Chevrolet Equinox has a total cooling system capacity that ranges from 7.4 to 9.5 quarts (7.0 to 9.0 liters), depending on the engine.

Quick Answer

• Total Cooling System Capacity: 7.4 qts (7.0 L) for the 2.4L; 9.5 qts (9.0 L) for the 3.6L V6.
• OEM Coolant Specification: ACDelco DEX-COOL® Antifreeze/Coolant Concentrate, Orange, OAT (Organic Acid Technology), GM 6277M.
• Mix Ratio: 50/50 mix of DEX-COOL® coolant concentrate and deionized water.

Capacity by Engine Option

The 2017 Equinox was available with two engine options, each with a different cooling system capacity.

It is critical to use the correct coolant to prevent corrosion and ensure proper engine temperature regulation.

Flush Interval

General Motors recommends the following service intervals for the factory-fill DEX-COOL® coolant:

• Normal Service: 150,000 miles or 5 years, whichever comes first.
• Severe Service: If the vehicle is operated under conditions such as frequent short trips, extensive idling, or dusty environments, it is wise to inspect the coolant more frequently and consider a shorter interval, such as every 60,000-75,000 miles.

How to Refill & Bleed

A proper refill and bleed procedure is essential to prevent air pockets, which can cause overheating.

1. Safety First: Ensure the engine is completely cool before opening the cooling system.
2. Mix Coolant: If using concentrate, mix it 50/50 with deionized water in a clean container.
3. Fill Slowly: Pour the mixed coolant into the coolant reservoir until it reaches the "Full Cold" line.
4. Bleed the System: This generation of Equinox does not have a traditional bleeder screw. The system is designed to self-bleed.
   • Start the engine with the reservoir cap off.
   • Turn the heater to its highest temperature setting and the fan to a low speed.
   • Allow the engine to run for 10-15 minutes, or until the cooling fans cycle on and off. You will see the coolant level in the reservoir drop as air is purged from the system.
   • Continue to add coolant to the reservoir as needed to maintain the level at the "Full Cold" mark.
5. Final Check: Once the engine has reached operating temperature and the level in the reservoir is stable, replace the cap. Check the level again after the vehicle has cooled completely.

Common Cooling System Issues

Owners of the second-generation Equinox (2010-2017) have reported a few common issues:

• Water Pump Failure: A leaking water pump is a frequent problem. Signs include a visible coolant leak from the front-passenger side of the engine, a whining noise, or an overheating engine.
• Thermostat Issues: A stuck thermostat (either open or closed) can cause the engine to either run too cool (triggering a check engine light) or overheat.
• Coolant Leaks: Leaks can also develop from radiator hoses, the radiator itself, or the heater core. A sweet smell of coolant or visible puddles under the vehicle are telltale signs.
• High Oil Consumption (2.4L): While not a direct cooling system failure, excessive oil consumption in the 2.4L Ecotec engine can lead to higher operating temperatures, putting extra stress on the cooling system.

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