Skip the auto shop - Our mechanics make house calls

Q: How do I use the engine coolant heater?

asked by on

How do I use the engine coolant heater?

A: Having an engine heater is particularly hel...

Having an engine heater is particularly helpful when you live in a colder climate, making it easier to start your vehicle and gain better fuel economy during the winter months. If your vehicle is equipped with an engine heater, it is recommended you use it in temperatures below above 0°F. If you are planning to use your engine heater, plug it in at least four hours before you plan to start your vehicle. Keep in mind that the cord of your engine heater may contain an internal thermostat that will prevent it from working at temperatures above 0°F.

To use your engine heater, simply follow these instructions:

  1. Turn your engine off.

  2. Open the hood of your vehicle and unwrap the electrical cord, which you will find secured to the Engine Compartment Fuse Block with a clip. Remove the wire tie bundling the cord, and do not under any circumstances cut the electrical cord.

  3. Plug the cord into your average, normal, grounded 110-volt AC outlet to avoid risk of an electrical shock.

  4. Be sure to unplug and store the cord as you originally found it secured before starting the car to keep it away from the functioning engine parts.

If you have questions about how long you should leave your engine heater plugged in for, contact a qualified mechanic, as this time depends on several vehicle and climate specific factors.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I accelerate when using the electronic speed control?

If you are trying to pass someone while using the electronic speed control, you will likely need to accelerate, and thus deviate from your set electronic speed control. To accelerate, simply accelerate as you would normally. by pressing the gas...

Q: What are toggle switches and how are they used in cars?

Toggle switches are a simple type of electrical switch that is manually operated by the user using a short handle or lever. When the user presses the short handle forward or backwards the switch is moved between positions. When the...

Q: My car is overheating. What's wrong with it?

There are a few different places at which the coolant may be leaking from. Check for leaks around the thermostat housing, the water pump, all coolant hoses going to and from the motor and back to the radiator. Any of...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...