Noisy Auto A/C Compressors

Do you have a noisy compressor driving you crazy?

There are several causes of noisy compressors, and some of them need immediate attention to prevent permanent damage and premature failure.  Some of the most common causes are:

1- No Oil in the System. This type of noise is a heavy rattle sound coming from the compressor. If left unattended, the compressor will fail prematurely. 

2- Slipping Drive Belt. This type of noise can sometimes be solved with a simple belt adjustment, or replacement of the belt or tensioner. In some cases belt noise may indicate a compressor that is locking up because it is damaged, or freezing up. 

3- Worn Internal Compressor Parts. This type of problem can result in belt noise due to compressor failure, or a loud rattle from the compressor as the internal parts begin to fail. 

If your compressor is making any of these noises, it is important to get the system diagnosed and repaired as soon as possible to prevent UN-necessary repair costs. 

 Our Customers Agree...Kool Kar Auto Repair WINS on QUALITY, SERVICE and PRICE  Every Time...Thanks to all of you for making us NUMBER ONE.

Did You Know Part II Airflow Through Radiator and Condenser

Did You Know...Part 2
 Airflow Through The Radiator and Condenser 
 In our last article we talked about making cars lighter and the impact it can have on the cooling system and HVAC System.  In this article we want to focus on AIRFLOW through the radiator and condenser.  Small airflow changes through the radiator and condenser can have a dramatic impact on A/C performance. Reduced airflow through the radiator or condenser can result in premature compressor failure, poor performance, or even cause your engine or automatic transmission to overheat.  Restricted airflow is a common cause of compressor failure.  What causes a change in airflow through the radiator and or condenser?  I am glad you are some reasons why.

1.  If your car has ever been in an accident and the body shop did not re-install your air dam or fan shroud.

2.  Modifications to spoilers, grills, air dams or anything that inhibits air from flowing freely through the grill.

3.  A dirty Radiator or that's stopped up with dirt or debris on the outside or between the condenser and radiator.

4.  A Radiator or Condenser that's Stopped up from the inside causing improper heat exchange.

5.  Engine electric cooling fan or manual clutch fan not working properly.  JUST TO NAME A FEW!

Your cars ECU (Engine Control Unit) looks at numerous inputs to determine when the engine cooling fan or condenser cooling fan will turn on and off.  It looks at engine temperature, transmission temperature, A/C head pressure, and other sensors and switches essential for fan operation. The bottom line is keep the air flowing to prevent these problems.

When you have exhausted all your knowledge and still have a problem give Kool Kar Auto Repair a call or come by our location at 615 S.E. Parkway Azle Tx  We"ll leave the door open!

Our Customers Agree...Kool Kar Auto Repair WINS on QUALITY, SERVICE and PRICE  Every Time...Thanks to all of you for making us NUMBER ONE.

Did You Know???

Automobile Manufacturers do everything they can to make their vehicles lighter. It's an easy way for them to improve fuel mileage and power to weight ratio without changing computer controls and expensive engine parts. One of the results of this has been the reduction in the heat capacity of the cooling system. Manufacturers have downsized the radiator and replaced copper and brass with aluminum and plastic. This works great overall...BUT... Did you know that your vehicle's cooling system can alter the a/c system efficiency? 

Most cars and light trucks have the radiator located at the front of the vehicle. However between it and the grill is where the A/C system condenser sits. When your vehicle starts to run hot, it reduces the condenser's ability to remove heat from the refrigerant that passes through it. In addition to that, the heat build up can cause pressures on the high pressure side of the system to rise and this can lead to damage to the compressor.

At Kool Kar Auto Repair, we understand all of this. Bring your car or light truck by today and get the Cooling system checked if you are experiencing even slight over heating. 

Kool Kar Auto Repair... Azle's Most Trusted Auto Repair Specialists."
Summer is Almost Here... Is Your Auto Air Conditioning Ready for the Heat?    

Your vehicle's air conditioning system has been sitting idle, for the most part, over the winter. Cold weather can cause seals to shrink up slightly and small leaks can occur. The complex computer control systems, in today's cars and light trucks, are also challenged by extreme weather. The truth is, a system that worked perfectly last year, may not function properly this year. 

So why not get ahead of the game and get your a/c system checked and repaired BEFORE the hot weather hits. Bring your vehicle to Kool Kar Auto Repair today... and get your a/c system checked out and repaired as needed while it's still relatively cool weather. 

Kool Kar Auto Repair IS the A/C Authority in Texas...Stop By Today or give us a call at 817-270-2549 and BEAT THE HEAT!

DIY A/C Repair- What Not to Do.

At Kool Kar Auto repair we share the love of automobiles that the DIY Home Mechanic has.  

Auto Repair isn't just our business, it's our passion. However... there are some things you should know before you attempt an A/C Repair on your vehicle.

One of the most common problems we encounter at the shop is an A/C System that has been damaged by sealer that has been added to try and stop a leak. Adding Sealer to your system is a bad idea. Most sealers available at local auto parts stores can harden in the system and damage components like the compressor, Expansion Valve/Orifice Tube, and Evaporator. Once this occurs, the only way to repair it is to replace the entire system in most cases. A simple repair can become thousands of dollars worth of scrap metal very quickly. A customer brought their vehicle into the shop last summer that had exactly that happen. Not only did it damage the customer's A/C system, but our Refrigerant Recovery Machine was also damaged.

Another common problem we encounter is an overcharged system. Overcharging your system can cause the system not to work efficiently and may cause unnecessary damage to seals, and expensive parts like the compressor, condenser, and evaporator. Many Late Model A/C Systems are extremely sensitive to refrigerant undercharge/overcharge. In fact, some system tolerances are so tight that as little as one ounce of refrigerant can cause system malfunctions. These systems require that the system be evacuated and the EXACT amount of refrigerant installed. Simply adding a pound of refrigerant doesn't work.

The final thing to be careful of is the "Recharge Kit", also called a "Suicide Can" in the Auto Repair Industry. The recharge kits have a flaw in the overall design...they CAN be over-pressured by installation on the wrong port or possibly a severe over-pressure on the low side due to a restriction. When the pressure in the system exceeds the pressure in the can...well, lets just say you may have a shrapnel problem. The only right way to install refrigerant is with a proper equipment that allows the measurement of system pressure before the can is introduced to the system. 

DIY repairs can be rewarding and money saving...unless they result in unwanted costs and damage. And if you get into a repair and decide you are in over your head... bring it to Kool Kar Auto Repair in Azle, Texas...we'll be glad to help.