Q: cooling fan wont spin

asked by on

hi there. have just braught a 85 mazda 323 4 door and have notice that the fan isnt running. have just replaced the radiator and fan, started it up and it still isnt working, just wondering if you could help me diagnose the problem please
My car has a manual transmission.

Hi there. Radiator cooling fan operation is not designed, to continuously run. It is designed to turn on at a specific temperature, generally around 220 degrees. A quick check to see if the cooling fan is capable, would be to turn the a/c system on, at this point cooling fan(s) should turn on. The next step would be turn the a/c off, and allow the temperature to reach past halfway on the gauge and the cooling fan should cycle on. Assuming, the cooling fan(s) is inoperative. It could be, a blown cooling fan fuse, a faulty cooling fan relay. The cooling fan inoperative with temperature could be, a faulty coolant fan switch. I recommend having your vehicle’s inoperative cooling fan be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. cooling fan wont spin

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: Bad mileage on 2012 mazda 2

In order to check the fuel mileage you should drive as if you are trying to save every drop of fuel. The mileage rating is based on not running the a/c and driving mostly highway miles to get the mileage...

Q: Battery keeps getting drained on a 1990 Mazda Miata

The first thing you'd want to do is have your alternator checked. It could be that the alternator is not charging the battery. It sounds pretty typical to me. If it's not that, you have a really bad wiring harness...

Q: My coolant has changed from pinkish to dark brown.

Hi Brian. Thanks for contacting us today. This is actually quite common, as what's happening is that rust from inner coolant lines or the radiator itself is coming off with the new coolant. The best way to keep the coolant...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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.