How To: Recharge Your Car's A/C

Learn how to recharge your car, truck, or SUV’s air conditioning system to help you stay cool while driving. Recharging car air conditioners is a straightforward maintenance task that can keep the cabin of your vehicle colder and more comfortable in the hot summer months, and may even help your defroster perform better year-round. This step-by-step video can help you learn how to recharge the A/C system in your car, truck, or SUV the right way using the right products and tools.

View the full job and shop supplies here: https://www.oreillyauto.com/how-to-hu...

Supplies Needed to Recharge Your A/C:
1. Safety Glasses: https://urlzs.com/hbwc
2. Gloves: https://bit.ly/2GvfwAm
3. A/C Pro: http://bit.ly/2GCQyOn

0:00 A/C Recharge Basics
0:30 Locate the A/C Compressor
0:58 Turn On Your Car & A/C
1:05 Prep the A/C Pro
1:24 Attach the A/C Pro to the Low Pressure Port
1:37 Read the Pressure
2:50 Add Refrigerant
3:32 Detach the Hose

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Watch this detailed video to learn how to recharge the A/C system in your car, truck, or SUV yourself to help you avoid the cost of an A/C recharge at a shop. It is easy to recharge the A/C in your car, truck, or SUV with the right products and procedure. O’Reilly Auto Parts carries A/C recharging kits, as well as A/C compressors, condensers, hoses, and refrigerant for your car, truck, or SUV to keep your A/C system performing its best.

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Automotive Product Overviews
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DIY Auto Maintenance
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Transcript:
[Under hood]
Start by locating the compressor. The A/C compressor is belt-driven. It will have a large clutch and pulley on the belt side, and two hoses or tubes coming out the back. The larger of the two tubes is the low-pressure line.
This line has a low-pressure port with a cap on it, which is where we’ll be attaching our A/C Pro hose.
The port will be about the width of your thumb.
Remove the plastic cap and put it someplace safe.
If you didn’t turn on your vehicle earlier to locate the compressor, start your engine and crank your A/C up to Max-Cool with the fan on High.
Twist the plastic safety disk off the A/C Pro can—it can be discarded.
Attach the gauge assembly to the can by firmly twisting it on. Don’t remove it from the can until it’s completely empty.
Shake the can well before using it.
Push the quick-connect fitting at the end of the recharge hose down onto the low-pressure port.
The quick-connect fitting will only fit on the correct port. You’ll hear it click into place.
Tug on it gently to make sure it’s seated properly.
Now, you’ll use the gauge to read the system pressure.
Read the pressure indicated by the gauge needle only when the A/C compressor is running—you’ll know it’s running when the clutch in the center is spinning.
It’s normal for the compressor to be turning on and off.
The reading on the gauge will probably be in the red when the compressor isn’t running.
If your compressor isn’t coming on at all, even with your air conditioner cranked up, it could mean your system is low on refrigerant.
In that case, you’ll want to add a few ounces of A/C Pro.
If you add A/C Pro and your compressor still isn’t coming on, you’ll need to take your vehicle to a professional technician.
So, wait till the compressor is running, and check the reading on the gauge.
If the needle is in the red or “high pressure” section of the gauge when the compressor is on, do not add refrigerant—your system needs to be serviced by a professional technician.
If the needle is in the yellow section of the gauge, no additional refrigerant is needed, and you’ll need a professional technician to help you diagnose why your vehicle’s A/C isn’t blowing cold.
If the needle is in the white or “low pressure” area of the gauge, your system needs refrigerant.
If that’s the case, start by double-checking that the hose is attached securely to the low-pressure port.

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