How much refrigerant does it take to fill a 99 Tahoe 5.7ltr air conditioning system?

The 1999 Chevrolet Tahoe with a 5.7-liter engine typically requires about 2 to 2.5 pounds (approximately 0.9 to 1.1 kilograms) of refrigerant for its air conditioning system. It's important to check the specific service manual for exact specifications, as variations can exist based on the system's configuration. Always ensure the system is properly evacuated and checked for leaks before recharging with refrigerant.