How do I make my Sierra 2500 HD air conditioning colder?

Park in the shade whenever you can, and use a reflective sunshade in the windshield when you’re parked. If you’re the only one in the car, close all the vents except the ones that point toward you. Give the system the final boost it needs with an A/C performance check and recharge from Firestone Complete Auto Care.

What’s making my Sierra 2500 HD A/C put out warm air?

Maybe your A/C starts cool but then gets warm. Or maybe it never gets cold in the first place. Either way, your A/C troubles could be traced back to a clogged expansion valve, faulty compressor clutch, blown fuse, or leak.

How does my A/C system get a leak?

To put it simply, age and moisture are some of the main causes of leaks in your A/C. Over time, rubber gaskets and seals can wear out, which pushes much-needed refrigerant out of your Sierra 2500 HD’s A/C system — and lets outside moisture get in, which can take a toll on internal A/C components.

Does running the A/C in my Sierra 2500 HD use gasoline?

Your Sierra 2500 HD’s A/C uses some power from the engine to run. So, while your air conditioning system may not directly use gasoline as a fuel source, using the A/C can indirectly affect your vehicle’s fuel efficiency.

My Sierra 2500 HD’s A/C smells like vinegar! What can cause that?

If the air conditioning in your Sierra 2500 HD smells like vinegar, it could be due to bacteria growth on system components such as the evaporator and heater cores. Bacteria can grow when moisture accumulates on air conditioning system components, providing a breeding ground for microorganisms.

Why won’t my Sierra 2500 HD’s A/C cool the vehicle when the car is stopped?

Damaged or worn components in your Sierra 2500 HD’s electrical or air conditioning system can cause the A/C to only work when the car is moving. You may be dealing with low coolant or a faulty cooling fan.

Where can I go for Sierra 2500 HD A/C repair near me?

Firestone Complete Auto Care has decades of experience inspecting and repairing Sierra 2500 HD air conditioning systems. Schedule an A/C repair appointment at one of our locations near you today.

2019 GMC Sierra 2500 HD A/C Repair Near You

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Schedule A/C Service for Your GMC Sierra 2500 HD

Feeling the heat from your A/C? Our trained technicians can take a look at your 2019 GMC Sierra 2500 HD A/C system and recommend a repair plan. Schedule A/C service today and get ready to chill out.

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A/C Service for GMC Sierra 2500 HD

When you get in the car on a hot summer day, the last thing you want is a broken air conditioner. Your steering wheel feels like lava. Your skin sticks to the driver’s seat. “Who can fix my GMC Sierra 2500 HD A/C?” you wonder, as the sun beats through the windshield. Firestone Complete Auto Care — that’s who! We know our way around GMC vehicles, and our qualified technicians can diagnose and service the A/C system in your 2019 GMC. Bring your GMC Sierra 2500 HD to your local Firestone Complete Auto Care

During this initial A/C performance check, we’ll look at the state of your 2019 GMC Sierra 2500 HD’s A/C system to evaluate what repairs are necessary (if any). We’ll test overall system performance, check for any leaks, and measure the system pressure. If we think there might be a leak, we'll run a special U/V dye through the system or use a "sniffer." A "sniffer" is a machine that's run along parts of your GMC Sierra 2500 HD A/C system that can identify points where refrigerant fumes could be escaping the system. If your A/C system has a leak, we’ll find and repair it.

Sierra 2500 HD A/C Recharge

While your 2019 GMC Sierra 2500 HD’s air conditioner is being serviced, we’ll also do an A/C evacuation and recharge. To do this, one of our technicians will remove the refrigerant in your A/C system (if there is even any left to remove). Then, they’ll use GMC’s specifications to evacuate the system. The A/C system is recharged with new refrigerant and once we’ve done a final test on the system ourselves, you're ready to get back on the road. Our technicians are trained to efficiently perform 2019 GMC Sierra 2500 HD A/C recharges.

Other GMC Sierra 2500 HD A/C Problems

Warm air isn't the only GMC Sierra 2500 HD A/C problem you may encounter. Typical A/C problems also include weak airflow, which could be caused by mold or mildew buildup, a loose hose, an old ventilation fan, or a compromised seal. If your A/C system blows cold air first but then it turns warm, this may be due to a clogged expansion valve, faulty compressor clutch, blown fuse, or leak. Are you breathing in some “interesting” new odors in your 2019 GMC Sierra 2500 HD? That could be the result of a dirty cabin air filter (an easy fix!) or a moldy evaporator case. Technicians at Firestone Complete Auto Care are ready to help you address your A/C problems. Don’t sweat it — we’re here to help you chill out again in your Sierra 2500 HD.

2019 GMC Sierra 2500 HD A/C System FAQs

How do I make my Sierra 2500 HD air conditioning colder? Park in the shade whenever you can, and use a reflective sunshade in the windshield when you’re parked. If you’re the only one in the car, close all the vents except the ones that point toward you. Give the system the final boost it needs with an A/C performance check and recharge from Firestone Complete Auto Care.
What’s making my Sierra 2500 HD A/C put out warm air? Maybe your A/C starts cool but then gets warm. Or maybe it never gets cold in the first place. Either way, your A/C troubles could be traced back to a clogged expansion valve, faulty compressor clutch, blown fuse, or leak.
How does my A/C system get a leak? To put it simply, age and moisture are some of the main causes of leaks in your A/C. Over time, rubber gaskets and seals can wear out, which pushes much-needed refrigerant out of your Sierra 2500 HD’s A/C system — and lets outside moisture get in, which can take a toll on internal A/C components.
Does running the A/C in my Sierra 2500 HD use gasoline? Your Sierra 2500 HD’s A/C uses some power from the engine to run. So, while your air conditioning system may not directly use gasoline as a fuel source, using the A/C can indirectly affect your vehicle’s fuel efficiency.
My Sierra 2500 HD’s A/C smells like vinegar! What can cause that? If the air conditioning in your Sierra 2500 HD smells like vinegar, it could be due to bacteria growth on system components such as the evaporator and heater cores. Bacteria can grow when moisture accumulates on air conditioning system components, providing a breeding ground for microorganisms.
Why won’t my Sierra 2500 HD’s A/C cool the vehicle when the car is stopped? Damaged or worn components in your Sierra 2500 HD’s electrical or air conditioning system can cause the A/C to only work when the car is moving. You may be dealing with low coolant or a faulty cooling fan.
Where can I go for Sierra 2500 HD A/C repair near me? Firestone Complete Auto Care has decades of experience inspecting and repairing Sierra 2500 HD air conditioning systems. Schedule an A/C repair appointment at one of our locations near you today.