Why Isn't Your Car AC Cooling Properly?

We all know how frustrating it can be when your car AC isn’t cooling as it should, especially during those hot summer days in Rowlett, TX. But fret not! In this blog post, we’ll walk you through a step-by-step process to help you figure out what’s causing the issue and get your AC back in top shape. And should you decide you need an expert to take a look, our team at Accelerate Auto Repair and Collision is available to assist.

Start with the Basics:

Before jumping into complex stuff, let’s cover some simple checks that might solve the problem:

  • Double-check the AC settings: Make sure the temperature control knob or buttons are set to the right cooling level. Sometimes, a quick adjustment is all it takes.
  • Test the fan: Try different fan speed settings to ensure the blower fan is working properly.
  • Look for visible leaks: Take a peek at the AC system components, like hoses, fittings, and the compressor. If you see any signs of refrigerant leaks or damage, that might be the culprit.

Investigate the AC Compressor:

The AC compressor plays a crucial role in keeping your AC system running smoothly. Let’s see if it’s causing the cooling problem:

  • Check the compressor clutch: Start the engine and turn on the AC. See if the compressor clutch engages and disengages correctly when the AC is activated. If it doesn’t, there might be an electrical issue or a problem with the clutch.
  • Inspect the compressor belt: Look for wear, cracks, or looseness in the compressor belt. A worn or loose belt can hinder the compressor’s performance.
  • Listen for strange noises: Pay attention to any unusual sounds coming from the compressor, like grinding or squealing noises. These can indicate internal damage that needs professional attention.

Evaluate Refrigerant Levels:

Having the right amount of refrigerant is essential for a well-functioning AC system. Let’s dive in:

  • Check refrigerant pressure: Use a pressure gauge to measure the refrigerant pressure in the AC system. If it’s below the manufacturer’s specifications, it might mean there’s a refrigerant leak.
  • Seek professional leak detection: If you suspect a leak, it’s best to consult a professional technician. They have the right tools to detect and fix refrigerant leaks effectively.

Inspect Cooling System Components:

Several AC system components affect cooling efficiency. Take a look at the following:

  • Assess the condenser: Check for damage or blockage caused by debris. A dirty or damaged condenser can hinder proper heat dissipation and affect cooling performance.
  • Keep an eye on the evaporator: Ensure it’s not clogged or blocked, as this can restrict airflow and reduce cooling effectiveness. Clean or replace the cabin air filter if needed.
  • Examine the expansion valve or orifice tube: Look out for any blockage or malfunction in these parts. They regulate refrigerant flow and can cause cooling issues if they’re faulty.


By following these straightforward steps, you can identify the reasons behind your car’s AC not cooling properly. Remember, safety first! If you come across any complex repairs or feel unsure about anything, it’s best to consult a professional technician. Regular maintenance and timely repairs will keep your car’s AC system in great shape, ensuring you stay cool and comfortable during those scorching summer drives in your suburban neighborhood.

Should you determine you need assistance with fixing your broken AC in Rowlett, TX, don’t hesitate to give us a call. We’ll get you back on the road with working AC before you know it.

Why Isn't Your Car's AC Cooling Properly—Rowlett, TX