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AC Air Conditioning Auto Parts

Discount Auto Repair: Your Truck or Car's AC System

At Discount Auto Repair we understand how your AC system works. Your car or truck's AC system uses a Freon gas type refrigerant for cooling. For automotive applications, Freon is refined into tetrafluoroethane, a non-toxic, non-flammable and non-corrosive gas called R134a. The ability of the refrigerant gas to change its physical properties into a liquid as it is compressed and condensed keeps you cool on hot summer days.

Discover More Reliable AC Parts

If your AC system starts blowing warm air come by the store at 9070 Louisiana St and talk with one of our auto parts specialists to determine what parts you need to get your AC working again.

Your AC compressor is the auto part responsible for compressing the refrigerant R134a. When it is compressed it becomes very hot. Because hot is the opposite of what drivers want in an AC system, the refrigerant must be cooled.

R134a is cooled by your car AC condenser. This auto part is a series of coils that look very similar to a radiator. Just like a radiator, outside air passes over the condenser to remove the heat from the compressed gas. It is then condensed into a very wet cold liquid. The receiver-drier absorbs excess moisture from the liquid. Next, your AC filter traps debris within the liquid that can cause clogging in your car's AC system. Call 219-269-8655 today and let our auto parts specialists help you find the right compressor, condenser or receiver drier to fit your car or truck.

At this point, the refrigerant liquid is still under too much pressure. The expansion valve and orifice tube take over and force the refrigerant to change from a high-pressure liquid refrigerant into a low-pressure liquid refrigerant mist before it enters the evaporator.

As the low-pressure liquid refrigerant mist flows through the evaporator, a blower motor pushes air across the cold tubes of the evaporator and cooled dry air flows into the passenger compartment of the automobile. The accumulator is a holding tank for the refrigerant as it exits the evaporator. While the refrigerant is circulating inside, the accumulator removes any moisture that may be present.

Call 219-269-8655 today and let our auto parts specialists help you find the right expansion value, orifice tube, and evaporator to fit your car or truck.

Contact Us Today!

Got questions? We've got answers! Drop us a line, give us a call, or even stop by. Our team is eager to help you with any auto repair needs you have. Let's get you back on the road safely and swiftly!

What Our Customers Are Saying

Great service an easy process.

Merrillville, IN

, 06/25/2026

Great dealer! Great service!

Merrillville, IN

, 06/20/2026

Super grateful to Bill and the team for taking such good care of us and our car. My partner and I had an Emergency situation on a road trip and they were the only place in the area that got the job done for us that day for a very fair price.

Merrillville, IN

, 06/19/2026

⭐⭐⭐⭐⭐ ABSOLUTELY OUTSTANDING SERVICE! ⭐⭐⭐⭐⭐ I brought my vehicle in for an A/C recharge, and I was blown away from start to finish. Bill and the staff was incredibly friendly, professional, and welcoming. They got me in and out faster than I expected, and the pricing was more than fair. What really stood out was the customer service. They treated me like family, answered all my questions, and made sure I understood everything before the work was done. It's rare to find a shop that combines speed, honesty, affordability, and genuine care for their customers, but this place nailed it. My A/C is now blowing ice-cold air, and I couldn't be happier. If you're looking for a trustworthy auto service shop that goes above and beyond, stop searching and come here. These folks have earned a customer for life! 10/10, 5 stars, highly recommended!

Merrillville, IN

, 06/16/2026

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