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4 Automotive Heating & Cooling Problems

Car Heater Controls
Your car's heating and cooling system can be the difference between enjoying a smooth ride and having to endure an unbearable drive. The temperature control features regulate heat levels inside your car during summer and winter and also keep your engine from overheating.
Several problems could compromise your temperature system, and a qualified mechanic should be able to analyze and repair these faults.

Malfunctioning Thermostat

One of the most probable reasons your car is not heating up is a faulty thermostat. The thermostat ensures that the engine works at optimal temperature. A defective thermostat can result in your engine warming up too slowly or fluctuating from the optimum operating temperature.
To diagnose this problem, a mechanic will check if the ventilation emits heat when the car is in idle mode. If you are driving on a cold day and your car's temperature display shows that the motor is working below its operating temperature, a problem might be developing with the thermostat.

Coolant Leaks

If your car starts to emit hot air, the coolant in the compressor could be depleted or is leaking. A recharge would be necessary if the coolant is low. A leak presents a more significant problem, and recharging will not remedy it. The AC system, which includes the condenser, evaporator, and compressor, might be faulty.
There's more to fixing a coolant leak than just replacing the entire AC system. The culprit could be one of the three components of the AC system all of which are in different locations in the car.
An auto shop with experienced professionals will fix not just the symptoms but the root of the problem. They will identify the primary source of the leak, assess any damaged components, recharge the coolant, and evacuate and seal the leak.

Suspicious Odors

Strange smells coming out of the air conditioner are a sign that something is not right with your car's cooling and heating system. The problem could be with the heater core, evaporator, or a mildew infestation. A quick way to tell whether the heater core is faulty is to check if rapid window-fogging accompanies the bad odor.
The heater core can be difficult to reach; have a mechanic look at it to eradicate the smell and stop mold from further infesting the AC system. A gasoline smell is symptomatic of a fuel leak beneath the hood, which is a hazardous situation. You should immediately tow your car to an auto repair and maintenance shop to have a mechanic check it.

Heater Core Problems

The heater core keeps the vehicle's heating system working properly. In winter, the heater core generates heat and passes hot radiator fluid through a fan, which then blows heat through a conduit to the car's cabin to keep the vehicle's interior warm. If your car is not warming as it should, the heater core could be problematic.
Your auto shop will assess the heater core and advise you on the need for a replacement. To be sure the fan functions correctly, place your hand on the fan to feel if any air is coming through the system. A mechanic will easily install a new fan if this is the source of the problem.
Coolant leaks, issues with the heater core, a faulty evaporator, or depleted coolant will affect your car's temperature control system. At DeMers Automotive, our ASE Master Technicians are extensively experienced in analyzing, diagnosing and repairing heating and cooling systems.
We work on all types of cars, and we have innovative diagnostic equipment to test and repair your vehicle adequately. Make an appointment to see one of our qualified mechanics as soon as you suspect or detect a fault with your vehicle's temperature system.
DeMers Automotive
1533 N Main St.
Longmont, CO 80501

Phone: 303-776-3666
Hours of Operation:
Monday-Friday 7:30 a.m. - 5:30 p.m.