Heating and Cooling Repair Services

Driving would be torture without heat and air conditioning. Many people don’t realize that these systems can sometimes affect the running of your engine too. This is becoming even more true in newer vehicles.
We have all necessary equipment to service any part of your heating and cooling systems. We even have a specialized machine that will determine if your A/C system has a leak, so when we do a repair you won’t be coming back due to refrigerant leaking out.

Services Offered

  • Climate Control System Diagnosis and RepairClimate control systems are HVAC systems with HVAC modules that automatically adjust the temperature to match what the driver/passenger sets it to. If it’s not working correctly, you may have issues with the heat, vents, and air conditioning. If all systems are affected, the HVAC module is the likely cause. Otherwise, the problem is usually in that part that is not working correctly.
  • Air Conditioning System Diagnosis and RepairYour air conditioning system works by compressing refrigerant and forcing it through cooling fins. The cooled refrigerant is then emptied into low pressure lines where the drop in pressure causes it to cool even further. Any leak in the system can cause your refrigerant to not be able to reach the pressures it needs for proper cooling. A leak in your evaporator core can vent out freon which can be dangerous for the passengers. Once the system pressure drops below a certain point, the compressor will not turn on at all or only for a second. When we do A/C repairs, we make sure there are no leaks, so you will stay cool longer.
  • Air Conditioning System RechargeIf your A/C cuts on and then back off, you have a leak in your A/C system that vented out all or most of your refrigerant. Recharging with those little bottles won’t seal the leak and the ones with Stop Leak additives may clog parts of your system. We detect and seal the leaks before recharging your system, so you won’t be wasting money on recharging over and over.
  • HVAC Control Module ReplacementThe HVAC module controls everything about the heat, vents, and air conditioning. If it’s not working correctly, you may have issues with any or all of these systems. If all systems are affected, the HVAC module is the likely cause. Otherwise, the problem is usually in that part that is not working correctly.
  • Heater Core ReplacementYour heater and your engine cooling system are connected. If your heat doesn’t work or takes a long time to warm up, it may be due to a coolant leak, low coolant, stuck open thermostat, or clogged heater core. A leak, low coolant, or a stuck open thermostat can also affect your engine by causing temperature sensors which control fuel output to read incorrectly. A damaged heater core will usually drip or steam up the inside of the car and will give off a smell like anti-freeze. A clogged heater core will not be able to give off much, if any, heat.
  • Heater Bypass Valve ReplacementMost cars have a heater bypass valve, but many don’t. It’s purpose is to redirect hot water from flowing through your heater core when you are not using the heat to keep the air inside cooler. If this valve gets stuck, you may have hot air all the time, no heat when you want it, or partial heat that can’t be adjusted.
  • Vent Door RepairAlthough it’s normally a rare problem, we’ve had a considerable number of customers come in with defective vent doors causing air to blow out of different vents than those selected by the switch. Problems with the vent door can be due to a broken hinge, defective actuator, or defective HVAC control module.
  • Temperature Blend Door RepairIf the temperature of the air coming from the vents is different than what it’s set at, you have issues with the temperature blend door not working correctly. Problems with the blend door can be due to a broken hinge, defective actuator, or defective HVAC control module.
  • Blower Motor ReplacementProblems with vents not blowing are usually due to a worn out blower motor or blower speed resistor, but may also be because of bad wiring or a defective fan speed switch in the HVAC module.
  • Blower Speed Resistor ReplacementProblems with vents not blowing are usually due to a worn out blower motor or blower speed resistor. If the fan blows at only one speed, the problem is the blower resistor or a defective fan speed switch in the HVAC module.
  • Engine Cooling System
    • Radiator ReplacementIf you have clogs or leaks in your radiator, it can’t cool as well as it should. Any leak in the plastic end caps will rapidly expand if the radiator is continued to be used.
    • Radiator Hose ReplacementEven a pin-hole leak in a radiator hose can spray out gallons of coolant in as little as 15 minutes. Often when radiator hoses develop leaks, it is due to heat and age. A small leak in an old hose can expand easily.
    • Radiator Fan RepairIf your radiator fan is not working correctly, your engine may overheat whenever you are stopped or in heavy, slow moving traffic. Most of the time when you are moving, your radiator fan will be off because the air flowing through the radiator is enough to cool the engine. A fan that runs all the time will keep the engine below its operating temperature causing increased fuel consumption. Problems with the radiator fan may be due to the fan motor, engine temperature sensor, coolant leaks causing bad temperature sensor readings, or fan relays.
    • Water Pump Replacement If the water pump is worn out, it might not provide the necessary coolant flow to keep the engine cool. This typically happens when the cooling system is running water with little or no coolant mixed with it, which causes the pump fins to rust. Even if the proper coolant mixture is used, a water pump may develop leaks around the pump shaft. This happens either because of age and normal wear or due to an over-tightened serpentine belt.
    • Thermostat ReplacementThe thermostat’s job is to keep the cooler water separated from the hot water until the hot side reaches a certain temperature. Given this info you might think the thermostat is useless; but while it’s holding the hot water in the engine, the cool water is getting cooled further in the radiator. Also, the engine has a particular temperature range that it performs best in, the thermostat is what keeps the coolant within that range. If you were to remove the thermostat, your car would take a little longer to get to its normal operating temperature, but once it got there, it would overheat quickly.
    • Cooling System BleedingBleeding is the process of letting the engine warm to the point that it creates pressure inside the engine and then venting out the air in the cooling system.
    • Cooling System FlushA typical engine cooling system will contain the coolant reservoir, radiator (and fan), water pump, thermostat, and heater core. Some engine cooling systems will have a heater bypass valve, multiple water pumps, multiple radiators, multiple heater cores, and/or multiple thermostats. No matter what equipment your cooling system has, for it to function correctly, it needs to be free of clogs, free of leaks, free of air, and free flowing. Flushing will remove any loose clogs, but will not be able to remove most clogs that formed due to use Stop Leak additives.
    • Coolant Leak Diagnosis and RepairLeaks can be hard to trace down at times, but typically leaks can be traced by following the leaking fluid to its highest point. In some cases a leak may spray when the engine is hot, but only drip or not leak at all when it cools down. Leaks should only be repaired by replacing the leaking part or gasket, and not with Stop Leak additives which may clog the radiator, heater core, thermostat, and small coolant passages inside the engine.
  • If you don’t see the service you require listed above, call us at 404-366-9466. We probably just forgot to list it here.

A Warning About Engine Overheating

When your engine overheats you should stop driving until the engine cools down. To speed up cooling, turn off your engine but turn the key back to the ‘On’ position. Also turn your heater on and set fans to their highest speed. It will still take a long time to cool down, but it won’t take hours. You should wait until your temperature gauge reads below the normal operating range before trying to add coolant or water. Refilling your coolant while the engine is hot can cause the metal to crack. If after adding more coolant your engine continues to overheat, bring it in to us. We offer towing, so if it’s overheating too quickly to make it to us, don’t hesitate to call us at 404-366-9466.

A Warning About Using ‘Stop Leak’ Coolant Additives

Stop-Leak additives work by reacting with water and air to form an adhesive bond. These additives are not meant to be a long term fix, but as a patch to last you until you can get the problem properly repaired. Using them, even as directed, can cause your radiator, heater core, and small coolant passages to clog. This could compound your problems and cause overheating which could damage your engine. We recommend that you not use any Stop-Leak type additives, but instead get the problem repaired correctly. If you do use Stop-Leak before bringing the vehicle in to be repaired, tell us so we can flush your cooling system. Flushing will remove as much of the residual Stop-Leak from the system and eliminate the chance of clogs forming. Any clogs already formed may not be able to be removed without replacing the affected part.

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