Navigating cold climates requires a vehicle that’s ready to face the challenges of frigid temperatures, and a functioning block heater is a critical component in this regard.
Understanding how to determine if your block heater is working ensures that your engine remains warm and operational during chilly conditions. A block heater serves the vital role of keeping the engine block at an optimal temperature, facilitating easier starts and promoting efficient fuel combustion.
However, without proper assessment, it can be challenging to ascertain its functionality. In this guide, we will explore how to know if block heater is working. From checking for visible signs of warmth to utilizing a thermometer and monitoring the vehicle’s performance, these techniques will empower you to confidently ensure your block heater is in working order, providing the warmth your engine needs for reliable starts in cold weather.
What is a Block Heater?
A block heater, also known as an engine heater, warms the engine to ease starting in cold temperatures. Typically, it is an electric heater that is installed in a vehicle’s engine block and keeps the coolant warm to assist in the vehicle’s starting process. The block heater can be found inside the engine bay, and it can be a plug with a wire attached or an immersion type heater.
Signs of a Working Block Heater
Warm Engine
A working block heater should keep your engine at a mild, warm temperature, even when left out in the coldest of weathers. This warmth is essential for the oil and other fluids to maintain their optimal viscosity and flow, which is key for a smooth start.
Faster Warm-Up Time
If you have a block heater that’s functioning correctly, you’ll notice that your car’s cabin gets warm faster than if you start up a cold engine directly in cold weather.
Reduced Fuel Consumption in Cold Weather
Since a warm engine has less resistance, it doesn’t require as much fuel to start and maintain running temperature. This can save you on fuel bills during the winter.
Easier Engine Starts
The most immediate and noticeable benefit of a working block heater is an easier time starting your engine. You should notice that it starts quickly and without any of the usual sputtering or hesitation that comes with cold weather.
Signs of a Faulty Block Heater
1. Cold Engine
The most obvious sign of a faulty block heater is when the engine feels cold to the touch, even after it’s been plugged in for a while during cold weather.
2. Extended Warm-Up Time
If you find that your car’s interior takes an unusually long time to warm up, it can indicate that the block heater is not effectively warming the engine.
3. Increased Fuel Consumption in Cold Weather
A direct result of a poorly functioning block heater is the need for more fuel to reach and maintain operational temperatures.
4. Difficulty Starting the Engine
A malfunctioning block heater often leads to hard starts, stalling, or misfiring in the engine. If you repeatedly experience these problems, it’s time to check your block heater.
10 Ways To Know If Your Block Heater Is Working
Ensuring your vehicle’s block heater is operational is crucial, especially in colder climates. Here are 10 easy methods to confirm it’s running effectively.
1. Check the Timer
First, review your block heater’s timer setting. If it’s set correctly, it should correspond to the time it should turn on before your expected daily start time. For example, if you expect to start your car at 8:00 AM, the block heater timer should be set to turn on at least two hours before that time. This will ensure that your engine is warm and ready to go by the time you need it.
2. Feel the Cord
Gently touch the block heater cord. It should feel warm to the touch, indicating that electricity is flowing through it. If the cord feels cold, there may be an issue with the electrical connection or the block heater itself. In this case, it is best to consult a professional auto mechanic to troubleshoot and fix the problem.
3. House Power Monitor
If your block heater is equipped with a power monitor, use it to verify that the device is drawing power when plugged in. The power monitor can also be used to track the amount of energy consumed by your block heater. This can help you better understand how much money is being spent on keeping your vehicle warm during colder months.
4. Use a Thermal Imaging Camera
For a more high-tech approach, use a thermal imaging camera after the vehicle has been plugged in for several minutes. The area around the block heater should show increased heat. This can help identify any potential issues with the block heater or its connection to the vehicle.
5. Listen for the Click
Many block heaters have an audible ‘click’ when they turn on or off. Listen when you plug the heater in or out, near the time it’s scheduled to be on, to catch it in action. This can be a helpful way to quickly check if the block heater is functioning properly.
If you don’t hear a click, it may indicate that there is an issue with the heater or its connection. In this case, it’s best to unplug the heater and have it checked by a professional before using it again.
6. Temperature Gauge Readings
Before and after using the heater, check your vehicle’s temperature gauge. A working block heater should show smoother, warmer starts. In addition to checking the temperature gauge, it is also important to regularly check the coolant levels in your vehicle.
During colder months, it is common for coolant levels to decrease due to evaporation and expansion caused by extreme temperatures. Low coolant levels can lead to engine overheating and cause serious damage.
7. Engine Warms Up Faster
With a properly functioning block heater, the engine should warm up more quickly, as the coolant has been pre-heated. This allows for faster circulation, which in turn helps the engine reach its optimal operating temperature sooner.
8. Infrared Thermometer
An infrared thermometer pointed at the engine block can detect a temperature increase, indicating that the block is being heated below the surface. This technique can be used to detect overheating and other issues during performance testing.
9. Check for Frost or Ice Melting
In cold weather, if your block heater is functioning, it can cause any frost or ice around the plug or outlet to melt. This can create a dangerous situation where water might enter the outlet, causing sparks and potential electrical fires.
10. Consult a Professional
If all else fails, a mechanic or a professional with experience in block heaters can run diagnostics to determine its status. They might also be able to check the block heater in detail. If there are any visible signs of damage, like frayed wires or corrosion, they can be fixed by a professional.
By following these methods, you can keep tabs on your block heater and ensure a reliable start every chilly morning.
Tips for Maintaining Your Block Heater
Proper maintenance is the key to ensuring your block heater’s longevity and effectiveness.
Regular Inspection and Cleaning
Periodically inspect the block heater for damage and ensure that the electrical components are in good condition. When the vehicle is not in use, keep the block heater plug clean and dry.
Proper Storage During Warmer Months
When the weather starts warming up, it’s tempting to forget about the block heater until next winter, but careful storage can help prevent damage.
Seeking Professional Help When Needed
If you’re not confident about the health of your block heater, don’t hesitate to take it to your trusted mechanic. It’s not worth the risk when it comes to dependable engine starts in cold weather.
Conclusion
In conclusion, being able to determine if your block heater is working is not just a matter of convenience but a key factor in ensuring the optimal performance and longevity of your vehicle, especially in cold climates.
Regularly employing the methods outlined in this guide, such as feeling for warmth, using a thermometer, and observing the vehicle’s starting behavior, provides a proactive approach to winter vehicle maintenance. A functional block heater not only aids in smoother starts but also contributes to fuel efficiency and reduces wear on crucial engine components.
By staying vigilant and proactive in monitoring the block heater’s effectiveness, you can confidently navigate winter conditions, secure in the knowledge that your vehicle is equipped to handle the challenges of low temperatures, ensuring reliable and efficient operation when you need it most.
Now that you know how to know if block heater is working. While it does take a few steps each time, hopefully now you understand the process and why it’s worth taking the extra step to make sure your floor is properly cared for. So don’t wait any longer, take action today!