Radiator

Car Radiator Fan may have a Fault, I'm an electrical noob [duplicate]

Car Radiator Fan may have a Fault, I'm an electrical noob [duplicate]
  • 2583
  • Edward King
  1. What can cause a radiator fan not to work?
  2. How do I test my electric radiator fan?
  3. What sensor controls the radiator fan?
  4. How do you diagnose a bad cooling fan?
  5. Should radiator fan run all time?
  6. When should my radiator fan kick on?
  7. How can you tell if a fan relay is bad?
  8. Can a bad thermostat cause radiator fan not to work?
  9. How much does it cost to fix a radiator fan?
  10. Should radiator fan turn on when AC is on?
  11. How do you test a radiator fan relay?
  12. Which fuse is for the radiator fan?

What can cause a radiator fan not to work?

Six things may prevent an electric cooling fan from coming on: Defective temperature switch, coolant sensor or other sensor. Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan) Faulty fan relay.

How do I test my electric radiator fan?

Unplug the fan connector closest to the fan. Make up some jumper cables. Then connect them directly, from the battery to the fan motor, to see if it spins. Consequently, if it does not spin it is blown.

What sensor controls the radiator fan?

In both cases, the control units use a temperature sensor to know when to start the radiator fan. If this temperature sensor is broken, the control unit will not know when to start the radiator fan. Some cars use separate engine coolant temperature sensors for the radiator fan and the engine control unit.

How do you diagnose a bad cooling fan?

Keep a lookout for the following bad cooling fan relay symptoms:

  1. The engine runs hot or overheats. Is the engine running hotter than usual? ...
  2. The cooling fans don't work. ...
  3. The cooling fans keep running. ...
  4. Warning lights. ...
  5. Poor air conditioning performance. ...
  6. Normally open relay. ...
  7. Normally closed relay. ...
  8. Dual relay.

Should radiator fan run all time?

An electric fan SHOULD NOT run all the time. ... The fan turning on is normal and a consequence of the hot coolant, not a cause. The coolant may not be moving due to a water pump problem, blockage in the radiator or hoses, or a stuck valve, i.e., the “thermostat” in the coolant line.

When should my radiator fan kick on?

Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.

How can you tell if a fan relay is bad?

Symptoms of a Bad or Failing Cooling Fan Relay

  1. Engine running hot. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. ...
  2. Cooling fans do not function. Non-functional cooling fans are another common symptom of a potential problem with the cooling fan relay. ...
  3. Cooling fans stay on at all times.

Can a bad thermostat cause radiator fan not to work?

If the thermostat is stuck open (allowing coolant to flow) it can cause the engine to run cooler than normal so obviously the fan wouldn't come on.....but not like the engine/coolant can be running too hot and the thermostat somehow effects the sensor reading or operation of the fan.

How much does it cost to fix a radiator fan?

The average cost for radiator fan motor replacement is between $593 and $627. Labor costs are estimated between $128 and $162 while parts are priced at $465. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

Should radiator fan turn on when AC is on?

Both radiator fans should always run when the AC compressor is engaged. ... To check the temperature at which the fan comes on, turn the A/C off and keep the engine running until it reaches normal operating temperature. Most fans should come on when the coolant reaches about 200 to 230 degrees.

How do you test a radiator fan relay?

The quickest way to tell whether or not the electric fan(s) are working is to start the engine; let it reach normal operating temperature and then turn the A/C on. The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser.

Which fuse is for the radiator fan?

The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator. To replace the cooling fan relay, there are two methods that we will cover for the positions mentioned above.

Automatic transmission odd behaviour on shallow inclines
How do you know if your automatic transmission is going out?How do you diagnose transmission problems?What causes automatic transmission failure?Can a...
Failed Inspection - rust on rotors from not being driven much
Will rusty rotors pass inspection?Will bad rotors fail inspection?Can Rust make you fail inspection?Is it normal to have rust on brake rotors?How do y...
Jeep Cherokee Electrical
Do Jeep Grand Cherokees have electrical problems?What would cause a Jeep Cherokee to not start?What problems do Jeep Cherokees have?What is an ECM on ...

Yet No Comments