Coolant For Ac In Car

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The Ac Manifold Setup

How to Recharge Your Car’s AC System (Fast and Easy)

The AC manifold setup is used to recharge or evacuate the refrigerant from the system and measure the pressures at the low-pressure and high-pressure lines. It has a brass manifold with 2 pressure gauges – one for the low pressure side marked in blue and the other for the high pressure side marked in red .

There is a valve mounted on either side which controls the flow of refrigerant through the 3 threaded ports on the manifold. While charging the refrigerant, the valve next to the LP side is opened and the refrigerant flows from the refrigerant can to the system in the liquid phase. The manifold has a gauge glass at the centre which shows the flow of refrigerant while charging the setup.

Color coded hoses are used to connect the manifold to the system. Just like the pressure gauges, blue for the LP side, red for the HP side and yellow for charging or evacuating. Color codes are for easy identification – otherwise, the hoses are identical in terms of connectors and size.

These hoses have threaded Schrader valves at the ends just like the ones in the tyres. Press the central pin and the gas escapes.

To connect the hoses to the cars LP and HP ports, quick coupler fittings are provided. These are also color coded – blue for the LP side and red for the HP side.

The quick couplers are foolproof because the openings are different. The LP quick coupler has a smaller opening while the HP one has a larger opening. One cannot fit the wrong fitting to the port.

Why Coolant Leaks Into Your Vehicle Floor

While the AC and engine coolant works independently of each other, a broken heater core may result in coolant smells in your vehicle. The heater core is responsible for conducting heat from the engine into your drivers cabin, making it warmer in rainy periods.

Thus, the heater core is located behind the dashboard and cannot be monitored easily in the case of damage. When broken, the heater core spills a puddle of coolant on your cabin floor, resulting in a sweet smell and fogged up windows.

Apart from fogged up windows, a heater core leakage may result in a cold driver cabin regardless of cranking your AC to high-temperature levels. In extreme scenarios, the cabin may be extremely cold while the engine is overheated.

In the case of a leaking heater core, you can bypass the coolant flow to the core, thus avoiding the coolant hemorrhaging as you visit your mechanic.

However, this should be a temporary fix as the heater core plays a defrosting function, which is essential in ensuring your engine cooling systems optimal operation.

Air Conditioning Recharge Procedure

CAUTION:OPTIONAL BUT HIGHLY RECOMMENDED:LOW pressure gauge:25 and 40 psiSTOP. High pressure gauge:200 to 225 psi 225 to 250 psi STOP.NOTE:


If your A/C stops blowing cold air several days, weeks or months after you recharged it, it means the system has a leak and the refrigerant is escaping. You should add some leak detection dye to the system to find the leak. The leak should then be repaired before the system is recharged again, otherwise you are just wasting your time recharging the system over and over again.

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How Can I Keep My Engine Cool On A Hot Summer Day

Most people complain of overheating engines during summers. Hence to avoid overheating problems in summers, keep your radiator filled with the right mixture of coolant and water during the summer months to keep your engine cool.

When debris collects in your engine, it may cause further damage to the cooling system if it gets there. You can prevent this by changing your oil regularly. The best thing you can do when your radiator is faulty is to replace it rather than add more fluid to your system. Avoid keeping your car standstill in the garage with all windows up during summers. It can cause the car to overheat.

Hence, its highly recommended to take your car for a ride at least once every day. Contrary to that, avoid excess travel during summers as the coolant becomes thin by regularly circulating the engine. Due to thinning, the coolant might not reach other parts of the car resulting in overheating.

What Is Vehicle Air Conditioner Refrigerant

Recharge Your Car Air Conditioning

The U.S. Environmental Protection Agency has gradually phased out the R-22 refrigerant, commonly known by its trade name of Freon, also called HCFC-22. Hydrochlorofluorocarbons, or HCFCs, have been known to erode the Earths protective ozone layer and contribute to climate change.

Freon first emerged in 1930 as a miracle chemical, according to the National Institute for Automotive Service Excellence . However, the EPAs phaseout of R-22 has a limited effect on automotive air-conditioning systems in cars, trucks and SUVs.

Vehicles manufactured before the 1994 model year used R-12 . Newer vehicles rely on R-134a refrigerant, also known as HFC-134a. A lot of older A/C systems that depended on R-12 as a refrigerant can be retrofitted to use R-134a.

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What Is The A/c Compressor

The compressor is the core, primary part of every A/C system. If you want to stay cool, a working compressor is essential. Weve seen people try to create cold air with out one. Trust us, it doesnt work.

The compressor:

  • Pressurizes the refrigerant that cools your air.
  • Senses temperature changes: Compressors monitor and control temperature output with an electrically operated clutch. This clutch turns on and off whenever you change the temperature, choose a different airflow setting or just when plain old air from outside drops or rises in temperature.
  • Powered by the serpentine belt: That winding belt under your hood is responsible for powering many crucial components, including your A/C compressor.

Signs of a worn compressor: Oil or Freon leaks, noise, and erratic or no operation are indications that a compressor may need to be replaced. We can inspect your car for leaks using special refrigerant detecting dyes and devices. You may not be able to see a leak, but our equipment, sometimes referred to as a sniffer, can detector sniff-outa chemical leak even if no liquid is visible. Yea, you can say were pretty advanced over here.

Refrigerant Types Used In Car Air Conditioners


It has often been said that the greatest invention of the 20th century is air conditioning, which made living in warm climates more attractive and automobile travel in summertime bearable. Today, demand for air conditioning in cars and trucks is so universal that it is nearly impossible to purchase a new automobile without it. The air conditioning system in your car or truck is a complex system that runs on one of three different refrigerant types, most likely refrigerant R134a. Although other parts of your car A/C system can break or wear out, the most common issue with a vehicles A/C is a refrigerant leak.

For that reason, it is important to understand the three refrigerant types used in A/C systems in cars, so you can purchase replacement refrigerant appropriate for your vehicle.

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Does Coolant Affect Ac

The air conditioner system has a type of refrigerant, and it is called Freon. Itll keep the interior of your vehicle cool. Let us know more about this matter.

So does coolant affect AC? The engine cooling system has an indirect effect on your air conditioner system or performance. A high under the hood performance can have an effect on the AC and it can have a bad AC output.

If you perform a coolant flushed, your AC performance will be affected. This simply means that your air conditioner will use coolant so that it can keep your vehicle cool. And a cool vehicle is vital for the comfort of the driver and its passengers.

If your air conditioner is not working on a hot day, it can be very troublesome and it can instantly ruin your mood. You might have to go somewhere and the trip will be very bad without an air conditioner. With that, you should know all the reasons why there is a bad performance from your air conditioner.

A lot of people are asking if the coolant can affect the performance of the air conditioner. So in this article, well be talking about how coolant affects your AC. Let us get started.

How Often To Recharge Your Car Air Conditioner

How to Safely and Easily Add Refrigerant to Your Cars AC System

Recharging the AC on a car is not a regular maintenance item on your cars manufacturer recommended maintenance schedule. In theory, the system is sealed, and you should never need to do this.

In practice, however, rubber seals dry up and wear out, and refrigerant slowly evaporates over time, leaving too little in the system for the air conditioner to work effectively. Other components can fail as well, but attempting a recharge is the first thing you should try, particularly since this is a cheap and easy DIY fix and often all it needs to start working again.

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Hanson Kia Car Care Tips: The 3 Most Common Types Of Refrigerant For Cars

When you turn the A/C on in your car on a hot day, have you ever wondered where the cold air was coming from? In part it comes from the refrigerant inside the system. The compressor and condenser push the refrigerant gas through the system, changing temperature and drawing warm air from the cabin while pumping cool air inside.

But there’s a catch: the refrigerant in your car is a volatile chemical. Special machinery is required to service a car’s A/C system, so that old gasses can be captured and recycled. Venting them into the air is illegal in the US according to EPA regulations! That’s because refrigerants in your car are part of a class of chemicals that’s been found to deplete the ozone layer and contribute to global warming. Learn about the different types of automotive refrigerant on this page from Hanson Kia!

And remember: Automotive refrigerant types don’t mix! Unique machinery is required to service a vehicle for each type of refrigerant inside. Be sure to consult your owner’s manual to find out what refrigerant your car uses before having the system serviced.

Interdynamics Certified A/c Pro R

If youve replaced a faulty part in your air conditioning system, you need to replace missing oil before you finish and seal up the system for recharging. Different parts replaced need different amounts of oil for example, a line might not need much, but replacing your compressor could remove a significant volume. To keep those new parts working properly then, youll need to add oil, and this is exactly the right part for many cars and trucks.

An 8 oz container means it should be more than enough for the majority of vehicle AC systems, but follow the repair instructions for both your vehicle and components replaced to make sure youre using the right amount. This refrigerant oil includes ICE 32, a lubricant additive that has been shown to improve refrigeration system reliability, efficiency and extend compressor life while reducing noise. This oil meets all specs for AC systems requiring PAG 46 oil.

  • Pros/Enhances AC system function and life after repairs
  • Cons/This is an oil only, not a refrigerant
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    A/c Pro Ultra Synthetic A/c Recharge R

    Another convenient product that offers a charging hose and gauge, only this one has an extra-long 24-inch charging hose to make installation and dispensing safer and easier. The hose is braided to help ensure that it isnt punctured by sharp, oddly-placed, or moving parts under your hood, and its more than twice the length of most other options. There is also a trigger dispenser to help you control the flow of refrigerant and avoid overfilling the system.

    The manufacturer says that its been tested to deliver the coldest air from your vehicles air conditioning system thanks to twice the cooling boosters of the next leading brand. A/C Pro Ultra Synthetic comes in a large-size can that contains approximately 17 oz of R-134a as well as 3 oz of additives that will work to help seal rubber o-rings, and seals and protect the life of the system by converting any water that gets inside to system-safe fluids.

  • Pros/Extra-long braided hose
  • We All Know How Hot The Texan Heat Can Be

    Portable Car Cooling Fan, Adjustable Quiet 2

    The Texan heat is tough on air conditioning systems, and during the summer months, the last thing you want is to head out for a long drive only to realize your vehicle’s air conditioning is not working. The chemical used to provide cool air is called Freon. Without it, there’s no way to circulate cold air throughout your vehicle cabin.

    Fried Egg Cooked on Texas Car Hood

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    Is Antifreeze Coolant The Same As Windshield Wiper Fluid

    The radiator prevents the vehicle from overheating. Antifreeze or coolant plays an important role in this particular function. It is often greenish or bright yellow.

    Windshield wiper fluid, on the other hand, is not a crucial fluid in your vehicle but it still has a purpose. Many windshield washer fluids are light blue. You can easily find and fill its reservoir tank under the hood.

    Get Help From Certified Professionals

    Coolant leaks are no laughing matter, and your car can quickly become expensive in the way of maintenance. Many problems associated with the cooling system cannot be solved with a bit of patching up. Others need a professional eye. Keep your vehicle on the road for the long run, seek certified professional help. Certified technicians know how to replace coolant or service your cooling system the right way.

    The Beginner’s Auto Maintainance & Repair Manual makes servicing simple. Its a true straight-forward guide that will allow you to maintain and perform easy repairs so you significantly reduce the amount you spend at workshops and prevent future problems from happening to your car.

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    What Is A Compressor Clutch

    Before the compressor turns on, a special electro-magnetic clutch, conveniently called the compressor clutch, is necessary to engage and disengage the compressor cycle. The compressor clutch tells the compressor when to turn on or off so that the Freon is correctly pressurized for use by the condenser which is then delivered to the evaporator where the chill begins.

    Experiencing A/C problems? Schedule an A/C Performance Check today.

    How Many Parts Make Up A Car A/c System

    How to Quick Flush Your Cars Cooling System

    Your A/C system consists of five major parts, all working together to cool you off and all your passengers.

    Most A/C systems are built with:

    • Compressor
    • Orifice tube or Expansion valve
    • Evaporator

    Your A/C system also consists of hoses and refrigerant charging ports, but the significant work occurs in the five parts listed above. You can learn more about each part that makes up your A/C system starting with the next question. Cool.

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    Locate The Service Fittings

    On older R-12 systems, the LOW and HIGH pressure service fittings are screw-type schrader valves. On R-134a systems, the LOW and HIGH side service fittings are quick-connect style fittings. The LOW pressure fitting is SMALLER than the HIGH pressure fitting. Late model vehicles with R-1234yf also have unique service fittings that are different from R-134a or R-12 systems.

    Ac Coolantfreon Refrigerant Replacement

    Central air conditioners, portable air conditioners, refrigerators, freezers car AC systems, and dehumidifiers all have one thing in common: the use of a cooling agent. In the world of HVAC, we commonly refer to this cooling agent as AC coolant.

    An AC coolant runs through interior coils of an appliance that either 1) cool passing air or 2) help to condense water in humid air. Without AC coolant, an air conditioner will not produce cold air. Until the early 2000s, Freon, also called R22 refrigerant, was the most common refrigerant on the market.

    Read on to learn everything you need to know about Freon and Freon replacement:

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    How To Fix Ac Leakages

    AC leakages can be fixed by replacing broken hoses, passing pressurized fluids within the system, or replacing the seals on your caps.

    However, refilling your refrigerant serves as a short-lived fix to the problem. If unaddressed, leakages may result in more damage, thus incurring a higher maintenance cost.

    It is advisable to engage a professional when fixing your system as they have sophisticated materials that can easily identify the leakage. Also, fixing some components requires full disengagement of the dashboard, which calls for a certain skill level.

    Conversely, you may opt to use an AC leakage sealant to patch smaller holes within your system.

    James has been a car enthusiast since his childhood when he learned the differences between a ford and a chevy from his father. He loves to drive and restore old cars with a special drive for Italian marvels. Currently, he has a 1968 Alfa Romeo. He has studied aeronautics and civil aviation in his college and still gets smitten by Galant SS and Lancer GSR.

    He is a New York-based product training director working with a giant automotive retailer. He loves to review and uncover the vehicles and their fascinating stories. He believes in keeping it legitimate with a keen passion for research on the latest technological upgrades in cars. While reading his articles or blogs, you can sense the extensive research and dedication backing the piece of text. He loves fried chicken, music, and spending quality time with his pet dog.

    Interdynamics Ez Chill Refrigerant

    Checking Your AC and Coolant Systems

    If your AC system is low, theres a leak of some sort, and unfortunately, theres no way around that. Sometimes, though, the leak is too small to find, and in that case, a solution like this Interdynamics EZ Chill all-in-one solution can be just the trick. It has everything you need without requiring you to buy extra tools or fittings: the can comes with a gauge to let you know the status of your system and when its full, as well as the proper fitting on the end of the hose to attach to your air conditioner. As a bonus, the gauge and dial indicator are reusable for future repairs.

    Meant for R-134a cars, it also has a leak sealer and additive than can help stop small leaks in hoses, gaskets and o-rings. It replaces not just the AC refrigerant lost, but the oil that can leak from the system with it.

  • Pros/Comes with reusable gauges, large size
  • Cons/The gauges aren’t necessary if you already have some
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