Why does my radiator fan only work with AC on?
The most likely culprits are a thermostatic switch, fan resistor, temperature switch, low-speed or high-speed relay, or a wiring issue. When the vehicle has the AC on, the engine needs extra help cooling so the ECU commands the fan to be on any time the AC is on.
Does a radiator fan push or pull air?
Electrical fans can either push air through the radiator or pull air through it. A pusher fan sits in front of the radiator. When a vehicle is moving, a pusher fan can obstruct airflow due to its positioning in front of the radiator. A puller fan on the other hand sits right behind the radiator.
Is it better to push or pull air?
Higher pressure air has higher density. When you push, the air in the duct will have higher pressure than if you were pulling form the other end. This means that for a given unit of time, more air flows though a pushed duct than a pulled one (again- assuming all other things equal).
How do you tell if a fan is pushing or pulling?
If there are no arrows, then you can tell by the sticker on the center of the fan. The one with the company logo on it is usually on the side that the air is flowing to. For example, if the fan is on the top of the case and the logo is facing up, then it is pulling air out of the case.
When to turn on the cooling fan on a Toyota Camry?
This is normal. 1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 83 C (181 F)) Turn the ignition switch ON. Check that the cooling fan stops. If not, check the cooling fan relay and ECT switches, and check for disconnected connectors or wire breaks between the cooling fan relay and ECT switches.
Why is the radiator not working on my Toyota Camry?
Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Camry is running hot, and the fan is not running we’ve laid out the most common causes of this issue below.
How can I tell if my Camry fan is bad?
The fan wiring is some of the more vulnerable wiring in your Camry. You can test the voltage going from the fan relay to the fan itself. If it is getting 12+ volts, the fan should be coming on. But if it’s not, which means the fan has gone bad.
What happens when you turn on the a / C in a Camry?
If you start the car and turn on the A/C, the magnetic clutch should engage and start turning the compressor pulley. If it does not, then there may be something wrong with the relay. Take the relay out and hit it a couple times. Then plug it back in.