# How much AC refrigerant Do I Need for Car?

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Most newer passenger car A/C systems do not hold much refrigerant (only 14 to 28 oz.), so you don’t want to add too much if the system is low. One can of R-134a typically holds 12 oz. of refrigerant.

## How many cans of AC refrigerant does a car need?

Most common refrigerant is 134A. Depending on how much is still in the system you may need 1 or more cans . 3 cans average. Best to buy what the tag on the compressor reads, or verify what you have.

## How much refrigerant Do I need to recharge my AC?

The General Rule of Thumb When estimating the amount of refrigerant in a residential A/C unit, the general rule that is used is in the 2-4 pounds per ton of cooling. Say, for instance, recharging a 3-ton A/C with a 35-foot line set from empty level will need an approximately 6-12 pounds of refrigerants.

## How do I calculate how much refrigerant I need?

Divide the quantity of refrigerant that the heat pump moves by the time it takes to move it. If it pumps 3.6 kilograms of refrigerant in 10 seconds: 3.6 / 10 = 0.36 kilograms per second. Divide the answer to step 1 by the answer to step 2: 51.2 / 0.36 = 142.2 kilojoules per kilogram.

## How much is refrigerant for car AC?

Freon is one of the core components in the air conditioning systems of many older cars, and will need to be replaced on a regular basis to keep the AC functioning properly. Freon replacements costs between \$187 – \$261 at most garages, with the freon itself costing between \$57 – \$120.

## What if I put too much refrigerant in my car?

The extra refrigerant puts more wear on the compressor, and this extra work can cause it to overheat which kicks it off. Also, the extra pressure from the Freon can cause the compressor to start pooling oil inside of it. This will completely burn out the compressor and cause it to need to be replaced.

## How many cans of Freon is 3 pounds?

3 Lbs would be 48oz……… 4 cans. The refrigerant is measured in weight, not fluid ounces.

## Is refrigerant a liquid or gas?

The refrigerant, a chemical compound that changes easily from liquid to a gas. When the refrigerant is pushed into the compressor, it is a low pressure gas.