How To Recharge Ac In Toyota Highlander

The Highlander’s air conditioning system has two ports. One has the designation H for high pressure, and the other has L for low pressure. With a DIY AC recharge kit, you can recharge your AC through the low-pressure port.

  • Your Highlander’s hood should be opened.
  • Verify the type of refrigerant that your car utilizes. Usually, the owners manual or beneath the hood are where you can find this information.
  • Start the car.
  • Set the fan speed to its highest level and turn on the air conditioning.
  • Connect the AC recharge kit after removing the cap from the low pressure service port with the letter L. Note: If the ports on the AC hoses are not labeled, try attaching the recharge kit to both of the unlabeled ports. Only the low pressure port will allow the recharge kit to fit securely; the high pressure port will not.
  • Release the refrigerant into the system while giving the canister a slight shake, continuing until the recommended pressure is reached. Note: For suggested pressure values, refer to the next section.

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Warning: To prevent unintentional exposure to dangerous chemicals in the refrigerant, put on gloves and safety glasses before charging the AC. Additionally cryogenic, it has the potential to severely frostbite skin upon touch.

How is the 2014 Toyota Highlander’s air conditioning recharged?

How to Add Refrigerant to a Toyota Highlander LE 3.5L V6 from 2014 to 2019

  • Access Low Pressure Port via Locating Port
  • Fill your air conditioning system with refrigerant safely.
  • Replace the low pressure port cap by replacing it.
  • Additional Information – Thoughts on recharging your air conditioning system.

Quick disconnect fitting for AC recharge charging port

Some recharge kits have this fitting that quickly and securely connects to the AC recharge charging connector.

Your air conditioner probably lost some refrigerant during the winter if it was blowing ice-cold air last year but is now hardly cooling. When aging seals shrink and some refrigerant leaks out, that occurs in older automobiles.

Typically, turning on the automobile air conditioning will send you back to the freezing cold. If your car was built after 1993 and is filled with R-134a refrigerant, you can complete that task by yourself (to make sure, check the label under the hood or the specifications section of your owner’s manual).

Restrictions may apply to the sale of R-134a refrigerant to consumers in several states. The cans may occasionally be designed differently, necessitating various charging techniques. All AC issues won’t be resolved by charging the AC. However, if you’re willing to risk $50 on a rechargeable ac kit, you could become a cool dude in less than an hour. By performing the auto ac recharge yourself, you can save roughly $100 on labor.

Pick up an R-134a A/C recharging kit at any auto parts store. Because it included a quick-connect fitting and reusable gauge, as well as a seal conditioner ingredient in the refrigerant, I used the A/C Pro product you see here. For an AC recharge for a car, however, any brand will work. A word of caution: Many commercial recharging kits utilize oils and seal conditioners that are incompatible with the electric AC recharge compressors in hybrid vehicles. A fatal electrical shock might be caused by using the incorrect auto ac recharge kit. Before making a purchase, verify that your hybrid vehicle is compatible with the car ac recharge product on the label. Consult a professional if you’re unsure.


If used incorrectly, refrigerant can result in frostbite and severe eye damage. Wear gloves and goggles when doing the process, and pay close attention to all the warnings in the package instructions.

How does Toyota choose its Freon?

Simple auto repairs, like charging the air conditioner in your Toyota Corolla, can save you money, give you a greater understanding of how your car operates, and, most significantly, are simple.

Although adding freon to a Toyota Corolla is a fairly simple process, you’ll need to add R-134a instead because freon has been phased out due to environmental concerns. To refuel the air conditioning in your car, you should:

  • Locate the low-side pressurized service port on the aluminum pipe leaving the condenser by opening the hood.
  • Coupler for the recharge kit should be installed onto the service port without turning the valve.
  • Roll all of the windows down, turn on the air conditioning, and start the engine.
  • Allow the air conditioning to go as cold as it can while allowing the engine to warm up to its normal operating temperature.
  • Turn the recharging canister’s valve while keeping an eye on the pressure gauge.
  • Once you’ve reached the recommended pressure shown on the gauge, usually between 25 and 40 psi, close the valve and leave the canister connected for one minute.
  • Keep an eye on the gauge and add refrigerant as necessary, pausing a minute in between additions.
  • After removing the coupler, give the air conditioner around ten minutes to operate.

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Does adding oil when recharging my AC count?

The Joule-Thompson effect, as it is known scientifically, states that as a gas expands, its temperature decreases. This simple theory underlies most refrigeration devices, including the air conditioner in your automobile. If you have ever used a CO2 fire extinguisher, you have probably witnessed this in action. The residual CO2 in the extinguisher may expand as the gas is expelled, causing the fire extinguisher to cool. The inverse is also accurate. A gas will warm up as it is squeezed. The same idea underlies how a diesel engine operates and is even evident when inflating a tire using a bicycle pump. As a result of the air being compressed, the pump and the hose will become heated.

Your air conditioning compressor compresses and warms the refrigerant in your air conditioning system. The condenser at the front of your car then cools it down to ambient temperature. An expansion valve or orifice tube is then used to let the ambient refrigerant expand. The refrigerant flows to the evaporator, located inside the car’s cabin, where it cools below atmospheric temperature as a result of this expansion. Passing cabin air over the evaporator causes the refrigerant to cool and return to ambient temperature. It then goes back to the compressor to restart the process.

The only moving component in your air conditioning system is the compressor, but the operation wouldn’t be feasible without it. Typically, the air conditioner compressor is positioned on the front of the engine block, where a belt from the engine can turn it. The compressor features a pulley and clutch arrangement on the front to enable the compressor to engage and disengage with the clutch while keeping the belt permanently fastened to the engine. The amount of cooling load on your air conditioning system and the RPM your engine is running will impact how frequently the compressor engages or disengages.

Unfortunately, repeatedly turning on and off your AC compressor will cause significant wear and tear. It must also live in an environment that is continually vibrating and enduring impacts from your engine running and your car going over bumpy roads. It also performs in a very high pressure system through a range of temperatures. It’s crucial to take care of your AC compressor because this is a challenging existence for any pump or compressor.

The easiest approach to guarantee the long lifespan of your AC compressor is to make sure you apply enough oil each time you recharge your system with refrigerant. Add BlueDevil Red Angel One Shot if you’ve found that your car needs more refrigerant. The right amount of refrigerant is present in Red Angel One Shot, and it also contains a sophisticated leak-sealing compound that acts as a lubricant up until a leak develops. Use BlueDevil’s Red Angel Oil injector to add Red Angel A/C Stop Leak to your system if you have emptied your air conditioning system to provide it lubricant and leak prevention.

How can I refuel my car’s R134a air conditioner?

To replenish or top off the refrigerant in your car’s air conditioning system, turn on the engine, set the air conditioner to the coldest setting, and open the doors to prevent the air conditioner from shutting off when it gets cool inside the car. Let the engine and AC system run for about five minutes before adding refrigerant.

Will AutoZone re-charge your car using freon?

If the system has been overcharged, it is best to have the car serviced so that the system may be properly evacuated by an AC machine and then serviced to the proper level. Alternatively, AutoZone has all the equipment and refrigerant necessary to service your R-134A or R-12 car if you choose to handle the work on your own.

Do AutoZone air conditioners require recharging?

Most of the time, this may be resolved by using a trusted stop leak additive to halt any leaks. Visit AutoZone for an AC recharge when the time comes. Along with other things, we sell R134a refrigerant, PAG46 oil, AC stop leak, and AC system cleanser.

What does it cost to recharge the AC in a car?

Taxes, fees, and your specific make and model are not taken into account in this price range, which is based on national averages for all automobiles. It may also be necessary to do related maintenance or repairs including replacing the fuel filter, the O2 sensor, and the spark plug wires. Use the RepairPal Fair Price Estimator to get a more exact quote depending on your make, model, and location.

How do you tell whether the AC in your car needs to be recharged?

Air from your AC is warm. Warm air blowing from your AC’s in-cabin vents is a warning sign that it needs to be recharged.

Is recharging the AC in a car worth it?

Until it fails to work properly in sweltering heat, you probably won’t give your car’s air conditioning system much thought. More than just a hassle, an air conditioner that isn’t working properly. Additionally, it may provide concerns, particularly if you are snarled in traffic and your car is getting too hot.

The air conditioning system in your automobile may need to be recharged if you find that it starts to break down and stops blowing cool air. Recharging an AC involves adding refrigerant to the cooling system so that it can start blowing cold air once more.

It is crucial to realize that charging your air conditioner will help a great deal with future issues. With that in mind, the following are some critical tips on the potential causes of your air conditioner’s malfunction, the warning signs that it might require an AC recharge, and the importance of making a reservation for one.

How long does it take the car’s air conditioning to cool down after a recharge?

Soon after the recharge is complete, your air conditioner should begin to blast cold air. Even though certain systems might take longer, the time after the recharging process shouldn’t exceed two hours. Any of the following causes could be the issue if the air conditioner doesn’t get cold after being recharged.

1. The AC and the automobile compressor are not connected.

Refrigerant troubles in a car air conditioner are frequently caused by compressor problems. This could be the cause if you discover that the AC is still blowing frigid air after being recharged. That will require you to visit a mechanic so the AC may be checked out.