Cooling fan continue to run. Replaced cooling fan switch and temperature switch, replace relays 1999 Honda
As I stated I replaced cooling fan switch/ sensor, temperature switch/ sensor and relays. This didn't solution my problem. did this car has a cooling fan module if so need the location of it.
My car has 129000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hi there – yes, some Honda models (Accord) have a cooling fan control module, and some models have a timer for the cooling fan. This feature would allow the cooling fan to continue to run for a brief period after the engine is shut off to bring engine temperature down. Since you don’t mention which model Honda you have, it’s hard to speculate which components you have, and where they are located. I would suggest a cooling system inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
Get your radiator and ac condenser cleaned with a pressure washer. Repeated kicking of fans occurs because the condenser alone is not able to dissipate heat owing to dust accumulation.
Car fans staying on after the engine is turned off may be caused by several reasons, such as low coolant level, malfunctioning cooling system, still-on A/C system, electrical issues, or computer control.
Faulty temperature sensor
On most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor. If it`s not working, the fan won`t turn on when it needs to, which means the engine might overheat.
In normal operation, no, the radiator fan doesn`t run all the time. The fan is hooked to a sensor that measures the coolant temperature in the radiator, and when the temperature gets a little on the high side, the sensor will (basically) send a signal that turns the fan on.
Common signs include engine overheating, the Check Engine Light coming on, and a broken or shorter signal wire.
If your air conditioner is running, but not lowering temperatures inside, one issue could be a blocked or clogged condenser coil. When operating correctly, the condenser fan draws air into the outdoor unit through the condenser coil to pull heat energy out of your home.
Several things can cause that condition. A stuck closed thermostat, blocked radiator, a faulty water pump, or low coolant all need to be checked. The fans turning on is normal when the engine gets too hot. However, if the coolant is low, or not circulating, it does not cool the engine.
The fan turns on when you`ve stopped driving because no more cooling air is flowing into the engine bay. This causes the temperature to rise, automatically triggering the fan. Once the temperature has dropped again (as it will do because the engine has stopped running), the fan should cut out.
There are two temperature sensors in some vehicles, one to send information from the engine system to the control unit and another from the control unit to the dashboard. The device follows the principle of dependence of potential difference in temperature.
The condenser fan relay is the electronic relay that controls the power to the AC condenser cooling fan. When the relay is activated the AC condenser fan is switched on so that it can keep the AC condenser cool.
If you notice the computer fan running constantly and making an abnormal or loud noise, this might indicate that the computer is not running as efficiently as possible, and/or clogged air vents. It is important to keep dust from accumulating in your computer and ensure adequate ventilation to help reduce heat.
If you notice the computer fan running constantly and making an abnormal or loud noise, this might indicate that the computer is not running as efficiently as possible, and/or clogged air vents. It is important to keep dust from accumulating in your computer and ensure adequate ventilation to help reduce heat.
Although it could run for over a 24 hour period, it is still best to turn off your ceiling fan when you are at work or out of the house for an extended time to give the ceiling fans` motor a rest and reduce electricity use and cost.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Cooling fan continue to run. Replaced cooling fan switch and temperature switch, replace relays 1999 Honda
ANSWER : Hi there – yes, some Honda models (Accord) have a cooling fan control module, and some models have a timer for the cooling fan. This feature would allow the cooling fan to continue to run for a brief period after the engine is shut off to bring engine temperature down. Since you don’t mention which model Honda you have, it’s hard to speculate which components you have, and where they are located. I would suggest a cooling system inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
My 2003 honda civic EX 1.7L is overheating. I replace the thermostat, replace the cooling fan temperature switch, remove the radia
ANSWER : It is likely your engine has a blown head-gasket, worn out water pump or somehow has a huge air bubble inside the engine that needs to be bled. The drop in engine temperature while on the freeway is actually a good sign – it indicates your radiator is getting good coolant flow, and the radiator is doing its job, transferring heat out of the engines cooling system. A YourMechanic certified technician can come to your location to perform a Car is overheating Inspection on your vehicle and help you diagnose and repair this issue.
replaced cooling fan switch, relay, thermostat fan still won’t come on even with AC running
ANSWER : It sounds like you’ve taken all the right steps, so I understand if you are frustrated. If you look in the fusebox again, you might find a fusible link that powers the fan if you haven’t already checked that. Most late model cars activate the fan via the ECU which activates the relay, so you are at a point where diagnosis may require a scan tool that has the ability to do activation. You can have that checked right there on the spot by contacting Your Mechanic. They can send a technician to your home or office to check out your cooling fan and let you know what it will take to solve your problem.
I had dual cooling fans, the replacement part was a single larger cooling fan. Now I get aengine light about my cooling system. Ho
ANSWER : Hello,
You should check with the person you bought the fan from. I show a listing of a single or a dual fan system. You should replace the fan with the same as what was removed. You should not use the single fan when you were equipped with a dual fan system. The wiring and programming is different depending on how it was made.
You should check with the person you bought the fan from. I show a listing of a single or a dual fan system. You should replace the fan with the same as what was removed. You should not use the single fan when you were equipped with a dual fan system. The wiring and programming is different depending on how it was made.
When replacing my fan clutch should I change my cooling fan to a flex-a-light and get a new flex-a-light clutch?
ANSWER : Hi there. It is best to always put on the OEM parts that are required for the vehicle. However, you can get a flex-a-light clutch fan for your vehicle as long as it will bolt up to your water pump pulley and clear the radiator and shroud. I recommend having a clutch design fan for your vehicle and not a fan that spins with the engine all the time. Those fans will cause the engine to overheat on highways and in town especially in hot weather. If you need further assistance with your cooling fan, then seek out a professional, such as one from Your Mechanic, to help you.
My cooling fan won’t turn on when I turn the ac on. Relays and fuses are good, tested the fan with the battery and it came on??
ANSWER : Hi there. In general, a situation like this occurs when either the thermostat housing or temperature sensor is not relaying the information to the fan motor to activate. However, it’s also possible that there is some electrical short within the cooling system relay’s that is causing the fan motor to not activate when it should. I think the best way to determine the precise source of this problem is to have a professional mechanic come to your location to complete an onsite inspection so they can test all systems to help isolate the root problem and recommend the right repairs.
Question about thermostat replacement and radiator cooling fan switch replacement
ANSWER : Hi there. Anytime the coolant system is worked on, a professional mechanic should verify the service steps with the manufacturer’s service guide. This will help them determine the right steps to complete the coolant bleeding – if it’s mandated by the individual manufacturer. It’s also a standard operating procedure for a mechanic to drain the coolant anytime replacing coolant system components; such as thermostat or coolant lines.
The radiator cooling fan relay is not one of those items that generally requires the fluid to be fully drained, but some mechanics will flush the radiator as a preventive maintenance service.
If you need to have further help having this checked, a certified technician from YourMechanic can come to your location to pinpoint any faults in the system.
1992 Honda Accord cooling fans not operating properly.
ANSWER : Hi there. Your issue is the ECT sensor B is not closing the loop when engaged. There is power to the sensor A from the computer, but the sensor B is not connecting when the vehicle is running hot or when the air conditioning is on. I recommend replacing the ECT sensor B, which is the on and off switch for the cooling fans. On the relay, terminals 2 and 4 are the direct circuit for the cooling fan, terminal 1 is the ground, and terminal 3 is for the circuit to the air conditioning system. Check the wiring between the fuse box and the terminal 3 for resistance and see if there is 0.5 ohms or less. If the meter reads OL, then there is a break in the wires and it would need fixed or replaced. If there is 0.5 ohms of resistance or less, then check the A/C switch and the ignition switch as they could be the source of disconnection. If you need further assistance with your cooling fans not working, then seek out a professional, such as one from Your Mechanic, to help you.
