Showing articles & questions for topic
fans

Related articles

P0494 OBD-II Trouble Code: Fan Speed Low
Diagnostic Diagnostic Trouble Code (DTC): P0494 P0494 code definition If the PCM has detected a voltage reading that is too low from the electric cooling fan control circuit, the P0494 code will be stored. What the P0494 code means...
P0484 OBD-II Trouble Code: Cooling Fan Circuit Over Current
Diagnostic Diagnostic Trouble Code (DTC): P0484 P0484 code definition When the PCM detects a voltage reading from the electric cooling fan control circuit that is either too high or too low in comparison to the manufacturer’s specifications, the P0484 code...
How to Replace a Condenser Fan Relay
A condenser fan relay operates the fan that removes heat from the engine. If faulty, it will not allow the A/C to blow cool air or function at all.
How to Replace a Fan Clutch
A fan clutch controls the car engine cooling fan and operates on temperature. It's mounted to the water pump and can cause overheating if it's broken.
How to Replace a Cooling Fan Resistor
The cooling fan may not work at all speeds if the resistor is broken. If the engine overheats or the fan never turns off, the resistor may be faulty.
How to Replace a Radiator Fan Motor on Most Cars
The fan motor on the radiator fails when the engine overheats and the fan does not activate. This means that the coolant cannot cool the engine well.
How to Replace an AC Condenser Fan
AC condenser fans need to be replaced when the air conditioning stops running. If the AC fans don't work when the car is on, the fan relay may be bad.
Symptoms of a Bad or Failing Heater Blower Motor
If your car's heater doesn't work, only works on certain speeds, or only cold air comes out, you may need to replace the heater blower motor.
Symptoms of a Bad or Failing Cooling/Radiator Fan Motor
If the fans do not come on, car overheats, and fuses blow, you may need to replace the cooling/radiator fan motor.
Symptoms of a Bad or Failing Cooling Fan Resistor
Common signs include the engine overheating, cooling fan only working at certain speeds, and the fan never turning off.
Symptoms of a Bad or Failing Cooling Fan Resistor
Common signs include the engine overheating, cooling fan only working at certain speeds, and the fan never turning off.
Symptoms of a Bad or Failing Cooling Fan Relay
Common signs include the engine running hot and cooling fans either not functioning or running all the time.
Symptoms of a Bad or Failing Cooling Fan Relay
Common signs include the engine running hot and cooling fans either not functioning or running all the time.
Symptoms of a Bad or Failing Condenser Fan Relay
If your car's AC is blowing hot air or its engine is overheating, you may have to replace the condenser fan relay.
Symptoms of a Bad or Failing Condenser Fan Relay
If your car's AC is blowing hot air or its engine is overheating, you may have to replace the condenser fan relay.
Symptoms of a Bad or Failing AC Fan Control Module
Common signs include cooling fans running for a long time or not at all, as well as weakened air flow. Without fixing, your car may overheat.
How Long Does a Fan Clutch Last?
One One of the most important parts within the cooling system of your vehicle is the fan clutch. It’s not a part that comes up often, as it’s usually pretty consistent. However, if this part should stop working the entire...
How to Buy a Good Quality Cooling/Radiator Fan Motor
Fans Fans are necessary to keep the components under your car’s hood from overheating. Excessive heat can cause warping, melting, and other damage, not to mention the additional energy suck. The radiator is one of the hottest parts in the...
How to Buy a Good Quality Cooling/Radiator Fan Motor
Fans Fans are necessary to keep the components under your car’s hood from overheating. Excessive heat can cause warping, melting, and other damage, not to mention the additional energy suck. The radiator is one of the hottest parts in the...
How Long Does a Cooling Fan Resistor Last?
The The purpose of the cooling fan resistor is to remove heat from the engine’s coolant and from the A/C refrigerant. The resistor does this by drawing air through the radiator and air conditioning condenser. A belt drive fan is...

Related questions

Question
Radiator fan not working
The radiator fan operates on a fused circuit with high amperage relays to drive them. The fan motor itself is also a possible and common failure point. Have a mechanic trained in vehicle electronics inspect the radiator fan for a...
Question
Over heating
This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning...
Question
How do I use the air conditioning?
The air conditioning system brings cold air into your vehicle, to help keep you cool on hot days. To turn on the air conditioning, press the A/C button in the middle of the Fan Speed Control knob. A light will...
Question
How do I adjust the fan speed?
The fan speed can be adjusted to any one of seven speeds. To adjust the fan, press the up or down buttons on the fan switch. The fan speed will then be shown on the display, so you know what...
Question
How do I adjust the fan speed?
The speed of the cabin fan can be adjusted to your liking. To adjust the fan speed, rotate the Fan Speed Control knob. Turn this knob clockwise to increase the speed of the fan, or turn it counterclockwise to decrease...
Question
Heater not working
Your vehicle has a control valve in the heater hoses the either blocks or allows the hot coolant to flow into the heating system. This control valve is operated by engine vacuum via several solenoids that are controlled by the...
Question
Heater blows cold air
The AC system needs to have a performance check run. The AC compressor needs to be checked for operation and a set of AC gauges put on the system to help diagnose the issue. If the system is low dye,...
Question
Fan not working
The most common problem is the cooling fan switch located on the pipe that connects the upper radiator hose to the radiator in the engine compartment. Another issue is that there may not be sufficient coolant in the radiator. I...
Question
Engine takes to long to warm up I've replaced thermostat already and it misses horrible till it warms up its a 4.9 engine
This engine uses a cooling fan clutch that controls the fan speeds on demand when the engine radiator starts to get hot if increases air flow to cool the engine down and slows the fan when it needs to increase...
Question
Cooling fans not working
If your cooling fan is inoperative, I would start by having a mechanic check the fan for power. If the fan is getting twelve volts but does not work, the fan is faulty. If the fan is not getting battery...
Question
Cooling Fans
Most Vehicles now have 2 separate cooling fans. One cooling fan is intended to come on when the engine reaches a certain temperature. The other cooling fan is intended to come on when the air conditioning is turned on. When...
Question
Cooling fans
This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning...
Question
Cooling fan not shutting off.
There are many vehicles today where it is normal for the cooling fan to run for a few minutes after the engine has been turned off. It is especially long running and will be more noticeable on really hot days...
Question
Cooling Fan
Hi, thanks for writing in. This is most likely related to a faulty coolant fan switch. This is a relay switch that comes on when the temperature of the coolant system reaches a certain level. When this switch is faulty,...
Question
Coolant light is on
The coolant temperature sensor may have a malfunction or your engine computer needs to be reprogrammed. The problem may occur when going through temperature extremes. The computer can sometimes read a rapid change of temperature which will turn on the...
Question
Check engine light is on.
First of all, a shop cannot let a vehicle leave the parking lot with the engine light on without your signature saying that you intend to leave with the light on. Second of all, the light might have been on...
Question
Car overheats when idling only
The cooling fan clutch on this engine requires the hot air flowing across the radiator to lock up the clutch when it starts getting hot. Some of these vehicle's radiators have a leak, or flow problem, that will cause the...
Question
Car keeps overheating
When a car overheats when it is sitting still or moving slowly, this is because the cooling fans are not turning on. If the car is fine while moving, the thermostat is fine, although, anytime a motor overheats, it can...
Question
Car is running hot
Hello. There are multiple things that would explain why your car is running hot. The most likely cause would be that the water pump has gone bad and is not circulating the coolant into the car properly. It is also...
Question
Car fans stopped working
The fans on your car work together together and get the power and control from the fan module on top of the radiator. If one fan is working but not the other then that fan motor would need to be...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question