Why is the radiator fan not working on my Ford Escape?
If your Escape has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. You’ll need to locate and test the engine temp sensor.
What happens if your car radiator is too hot?
If the engine is too hot, the thermostat will open to allow the flow of coolant into the radiator. The radiator will then cool it down before it is pumped back through the engine block by the water pump.
How does a radiator cool a car engine?
A radiator cools water in the vehicle. The water pump circulates water through the engine and radiator. The water picks up heat in the engine and is cooled in the radiator. There are two hoses between the radiator and the engine. The top hose is connected to the engine via a thermostat housing.
How does a water pump work in a radiator?
The water pump circulates water through the engine and radiator. The water picks up heat in the engine and is cooled in the radiator. There are two hoses between the radiator and the engine. The top hose is connected to the engine via a thermostat housing. The thermostat is what determines the reading on the temperature gauge on the dash.
What causes coolant to escape from the radiator?
A damaged radiator cap can also break the hoses by building high pressure in them, creating another channel for the escape of coolant. A faulty radiator cap can cause the coolant reservoir to overflow and overheating the vehicle’s engine system.
If your Escape has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. You’ll need to locate and test the engine temp sensor.
The water pump circulates water through the engine and radiator. The water picks up heat in the engine and is cooled in the radiator. There are two hoses between the radiator and the engine. The top hose is connected to the engine via a thermostat housing. The thermostat is what determines the reading on the temperature gauge on the dash.
How does a liquid cooling system work on a radiator?
It includes; the radiator, which is mostly an aluminum radiator, the thermostat, hoses, water pump or coolant pump, a radiator cooling fan, heater core, bypass system, head gaskets, and few other components. The liquid cooling systems function by transporting the coolant through a passage in the engine blocks and heads.
Why are my aux and main cooling fans not working?
Cooling Fans: Both Aux and Main Cooling Fans Have Stopped Working… Both aux and main cooling fans have stopped working. Turning on A/C or elevated engine temp doesn’t make either fan come on. I have replaced the Main cooling fan relay but didn’t help. Not sure if there is anything else that controls both fans or would cause them both to fail.
Why does the radiator fan not come on when the AC is on?
In order for the AC Condensor to do its job it must stay as cool as it can. As for the engine coolant temp sensor, if the coolant is not hot enough to make the fan come on, then there is no need for the fan yet and there is no problem.
Why does my PCM not turn on the fans?
You are looking to see if the PCM sends power to one or both relays to turn on the coolant fans. This should happen as the high side of the system approaches 214 psi. If it exceeds this amount of pressure and the system doesn’t turn on, one of the sensors in the system that the PCM uses to know when to turn the system on and off has failed.
Why are my coolant fans not running when AC is turned on?
Coolant fans not running when ac is turned on. AC compressor clutch engage then it will disengage. System has freon in it. It was working find but now nothin7. My car has 234565 miles. My car has an automatic transmission.
Cooling Fans: Both Aux and Main Cooling Fans Have Stopped Working… Both aux and main cooling fans have stopped working. Turning on A/C or elevated engine temp doesn’t make either fan come on. I have replaced the Main cooling fan relay but didn’t help. Not sure if there is anything else that controls both fans or would cause them both to fail.
Why does my radiator fan run when I unplug the sensor?
If I unplug the sensor the fans run. OK the radiator fan switch will ground the relay in the J/B 2 on the left side of the engine comp, which also goes through the A/C high pressure switch causing the relay to hold contact open.
How does a radiator fan work when the AC is on?
The electric radiator cooling fan assembly is controlled by a thermoswitch located in the side of the radiator. At higher coolant temperatures, the switch closes to start the cooling fans. Any time the coolant temperature rises to higher than normal levels, the fan will start and continue to run until coolant temperature returns to a normal range.