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The 2007 Chevy Suburban requires 40 ounces of R134a refrigerant for a refill, which is suitable for both the front and rear. Due to the potential hazards of handling freon, it is advisable to have a professional perform the refill. Refill costs typically range from $100 to $200, depending on the service provider. If you are familiar with your HVAC system and opt for a DIY approach, freon cans can be bought at auto retailers such as AutoZone. Additionally, some department stores like Target and Walmart may carry freon, but it's essential to ensure you select the correct type since expert assistance in these stores may be limited compared to specialized auto shops.
40 ounces of r134a is sufficient to complete a full recharge for both the front and rear air conditioning systems in a Suburban.