St. Charles, Missouri
1555 Centre Pointe Ct.
Saint Peters, MO 63376

4 Urgent Reasons You Need Car Heater Repairs December 6, 2018

St. Charles, St. Charles
4 Urgent Reasons You Need Car Heater Repairs, St. Charles, Missouri

Driving in the middle of winter without a working heater is more than just unpleasant; it’s dangerous if you break down and must wait for roadside assistance to arrive. It can also signal a larger vehicle problem requiring immediate attention to continue driving a safe, functional car. Here are a few causes of automotive failure you should know about before scheduling car heater repair or replacement.

When Should You Schedule Car Heater Repairs?

1. Faulty Thermostat

Vehicle thermostat valves connect to the bottom of radiator hoses and direct water through the cooling system. Sometimes the radiator ceases to work correctly, which causes the thermostat valve to remain open or shut. If it stays closed, the engine starts to overheat. If it stays open, the engine cannot warm up properly. Because heater cores rely on engine coolant to generate heat, your car will get cold fast in low temperatures.

2. Blown Heater Core

Icar heater repairf you notice your vehicle suddenly needs coolant on a much more frequent basis, you may have a leak in your heater core. These leaks will lead to a puddle on your passenger side floor.

3. Defective Blower Motor

Electrical problems may affect your blower motor fans. Heater blower motors blow warm or cool air out of your vents and are controlled via dashboard buttons or knobs. If you do not feel any air coming from your vents and or do not hear the motor working, you will not have heat.

4. Clogged Heater Core

Cooling systems eventually become clogged with rust and other debris if they are not serviced regularly, resulting in plugged heater cores. Once the core is clogged, replacement is required to enjoy a comfortable vehicle cabin again. Car heater repair experts recommend routine cooling system flushes using equal parts antifreeze and water to prevent clogs.


Routine preventative maintenance is the best way to avoid expensive car heater repairs among other costly services. Frecks & Sons Automotive provides drivers throughout St. Peters, MO, with the full suite of automotive services they need to stay safe on the road, including oil changes and brake repairs. Call (636) 928-5326 to schedule an appointment or visit the shop online for a complete service list.

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