Skip the auto shop - Our mechanics make house calls

Q: When I turn ON the Heater The Radiator Fan turns ON too and make the car engine cold could you please tell me the solution the fan

asked by on

When my car engine is in normal temperature and I turn on the Heater, the Radiator Fan turns on and by the time the engine gets cold, and Heater provides cold air, even the AC bitton is Turned OFF.
My car has an automatic transmission.

Hi there. Is the climate control set to defrost on the windshield? If so, this still engages the ac compressor and turns the radiator fans on. What is the current coolant level? A slow coolant leak may leave a trail of dried coolant, but the level may not be enough to cause overheating at the moment. If the coolant level is low this will affect the operating temperature of the engine and heater as well. A low coolant level can affect your air condition when the weather warms up; having a coolant concern corrected before summer can avoid possible air conditioner concerns. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a heater does not work inspection.

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
  • Home
  • Questions
  • When I turn ON the Heater The Radiator Fan turns ON too and make the car engine cold could you please tell me the solution the fan

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: Fuel smell

There are a number of things that can cause poor fuel mileage. A faulty camshaft position sensor is one of them. The camshaft position sensor is a magnetic sensor that monitors camshaft speed to regulate ignition timing and fuel injection...

Q: Passenger side air bag light won't stay off

It does indeed sound like your problem is with the occupant weight sensor and/or its circuit. I'm assuming the recall you had performed was NHTSA 13V 069000, which involves replacing the occupant weight sensor. If the dealership hasn't been...

Q: My car battery is dead but the brake light on dashboard is on

Hello and thanks for writing in. Often times many dash lights will illuminate when the battery is dead, indicating that a particular system (in this case the braking system) does not have the proper voltage to it. This is inherently...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.