Check to see if the cooling fans on your radiator are running. If they are not, there may be an electrical issue. You may need to replace the cabin air filter in your vehicle to increase air flow. Replacing the cabin filter may help get rid of any unpleasant smells in the car, as well. [2] X Expert Source Chad ZaniAuto Detailing Expert Expert Interview. 2 October 2019.
There is a clutch that engages when the air conditioner is working. With the clutch engaged, the middle of the pulley will rotate along with the pulley itself. If the clutch does not engage, the A/C compressor may be broken and require replacement, or it may just need to be filled with refrigerant.
Replacing your A/C compressor may require specialized tools. Bring your vehicle in for repairs if the compressor or clutch needs to be replaced.
Connect the leak detection can to the low side service port and spray it into the air conditioning system. If you spot any leaks, you will need to take the vehicle to a repair shop to be fixed by a professional. If you do not spot any leaks, the problem may simply be low refrigerant.
You cannot refill R12 refrigerant on your own. If your vehicle uses R12, you should schedule an appointment with an auto repair specialist to convert it.
Knowing the ambient temperature will allow you to effectively read the gauge on the refrigerant can. When refrigerant expands to take up more space, it increases the pressure in the can.
You can find the low side service port by following the lines from the A/C compressor until you find a nozzle near the bottom of the car. Refer to your vehicle’s service manual to help you locate the port if you are unable to.
You can spray brake cleaner onto the line to help you clean it if need be.
If your can came with a gauge, the hose should be connected to the nozzle on the gauge and then to the can. The hose should be long enough to allow you to connect it to the port without placing the can all the way into the engine bay.
Keep an eye on the gauge throughout recharging the system to know when to stop. Read the instructions on the can if you are unsure of how to read the gauge.
Some cans may require a different method to break their seal. Refer to the instructions on the can for guidance if need be.
Shaking the can occasionally will help maintain pressure as it continues to force refrigerant into the system. Do not turn the can or hold it upside down unless directed by the instructions on the can.
Leaks should be fairly easy to spot as you refill the system.
If the can is empty, you can throw it away. Be sure the can is not leaking if you opt to store it.
Be careful dealing with refrigerant leaks as the temperatures can be cold enough to injure you.
