Working Hours
  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • Sun Closed
settings

636-441-8121 | 4600 Central School Rd, Saint Charles, 63304

Air Conditioning Repair For Cars and Trucks

Kar Tech

If your car's air conditioning system is not keeping you cool don't let the hot weather make you miserable. Get back to cruising in comfort. Bring your car or truck by Kar Tech in Saint Charles and we'll get your AC working again. Call now at 636-441-8121 or stop by the shop at 4600 Central School Rd, Saint Charles, MO, 63304

Five Signs Your Car AC Needs To Be Serviced?

  • Your car air conditioning blows only slightly cooler than the outside air.
  • Your car's air conditioner blows air that smells like mildew and mold.
  • Your A/C only works while driving.
  • You have low airflow even at the highest fan setting.
  • Water condensing or dripping on your foot while driving.

Don't wait! If your car's A/C is working at reduced efficiency, it's worth a visit to Kar Tech. Taking care of regular maintenance now can help you avoid more expensive AC repair costs down the road. Sometimes fixing a broken air conditioner is as simple and cost effective as adding new coolant.

Most truck and car air conditioning systems break eventually with usage. Hoses that feed the AC unit may crack, clog or drip if not serviced. Let us service your car or truck and keep your cooling system performing at its peak. Call us at 636-441-8121 to learn more about how we can get your air conditioning running again!

Common Automotive AC Repair Services

Recharging Your Car's AC
Kar Tech in Saint Charles for Recharging Your Freon Fast

In some instances when your car's air conditioning (AC) begins to lose its cooling power or fails to blow cool air, it may be time for a simple freon recharge. Recharging your freon is often a fast and inexpensive repair that can help you beat the summer heat. But leaking freon may be caused by a cracked hose or seal. It is often an indicator that a more significant repair is needed.

More: Recharging your car's AC

Repair Your Car's AC Compressor
Let Kar Tech Repair Your Car's AC Compressor

The cool air in your car is produced primarily by the compressor. The four main functions that your vehicle's compressor carries out include pressurizing the refrigerant to cool cabin air, monitoring and controlling temperature output, sensing temperature changes inside and outside the vehicle, and moving air to your car's AC condenser.

More: Repair Your Car's AC Compressor

Repair Your Car's AC Condenser
Discover the Best AC Condenser Repair in Saint Charles

Your vehicle's A/C condenser is usually located in the front of the radiator. When your AC compressor is pressurizing the refrigerant flows to the condenser to reduce the temperature and pressure. The condenser is a vital component in keeping your car's cabin temperature cool. It moves the cooled liquid refrigerant to the receiver/dryer or accumulator.

More: Repair Your Car's AC Condenser

Repair Your Car's AC Evaporator
Repair or Replace Your Car's AC Evaporator at Kar Tech in Saint Charles

Located just behind the dashboard, your car evaporator is in charge of cooling air and removing moisture before it is blown into the cabin of your car or truck.

More: Repair Your Car's AC Evaporator

Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Replace Your Thermal Expansion Valve or Orifice Tube at Kar Tech

The Thermal Expansion Valve or Orifice Tube monitors the amount of pressure and temperature of your A/C system to calculate the precise amount of refrigerant that can safely go into the evaporator. Uneven pressure can allow unwanted moisture to accumulate in a car or truck's AC system.

More: Replace Your Car's AC Thermal Expansion Valve or Orifice Tube


What Our Customers Are Saying

reviewicon

Always good work and fair prices. I have a Tahoe that I purchased new that now has 340,000 miles, and a bunch of Jeeps with 240,000 miles apiece, I credit Kar Tech for giving me the ability to keep my autos on the road so long.

, 05/19/2020

reviewicon

Knowledgeable, Efficient, and Honest! Kar Tech diagnosed the problem, called me with an estimate, and completed the repair - at a very reasonable price!! I highly recommend this place!

, 05/19/2020

reviewicon

Great people who have gone above and beyond to get my truck on the road. Honest and very fair. I couldn't ask for anything to have gone better.

, 05/19/2020

reviewicon

I have used Kar Tech for the last 10 years with 3 different vehicles. I feel so safe and comfortable taking my car to them. I get honest feedback. The prices are great and the service is awesome. They always get me in quick and are great at explaining everything to me. I appreciate having them as my go-to more than they know. Thank you!

, 05/19/2020

reviewicon

Nice family owned business who knows what their doing!

, 05/19/2020

reviewicon

Friendly service and great prices. This has been my only mechanic for 15 years at least and will only go to them!

, 05/19/2020
  • ASE Master Technician
  • NAPA AutoCare Center
  • IDENTIFIX
  • Jasper
  • MITCHELL 1
  • Draeger
  • Motorcraft
  • Car Care Aware
  • Call Us For Service: 636-441-8121