Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Check the Engine Cooling Fan

Model: (Various brands) Various
Part: Blower motor

Video tutorial

In this video, see how to check a mechanical cooling fan; start by inspecting the fan drive belt, which should be replaced if it is dirty with grease or shows signs of wear that may indicate it could break soon. Check the tension of the fan drive belt and the condition of the tensioner pulley, as well as the cooling fan bearing.

Once the engine is off, rotate the fan by hand; it should move smoothly. If you notice any rotational issues, you may need to replace some bearings or the entire fan assembly.

If there is some play, tighten the belt, check the viscous coupling of the fan, then turn the fan blades, which should show no resistance. Before starting diagnostics on the electric fan, disconnect the negative terminal of the battery; check for any fuse or relay issues, then inspect the fan wiring and the temperature sensor - start the engine and check if the fan turns on - if it does not, the sensor must be replaced, but first check the connectors.


Updated on 18 September 2026 by ScegliAuto


Related tutorials

How to Replace the Engine Cooling Fan
How to Replace the Engine Cooling Fan
(Various brands) Various In this video tutorial, we can see how to replace the engine cooling fan. The first thing to do is to get in the vehicle and turn off the engine; pul…
What is the Purpose of the Cooling Fan?
What is the Purpose of the Cooling Fan?
(Various brands) Various The engine cooling fan is located at the front of the vehicle and pulls (or pushes) air towards the engine; when the engine reaches about 90/92°C, th…
Wiring Diagram for the Radiator Fan
Wiring Diagram for the Radiator Fan
(Various brands) Various Here we see a wiring diagram for the radiator fan, which varies slightly depending on the car model, but the basic principle is similar for most vehi…

Other guides you may be interested in

How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

More videos