Why won't my Engine fan turn off after I shut the car off?

Answer 1

Answer- I suggest taking your car to a garage if I were you. Cars don't usually do this unless they need fixing.

ANS 2:If the fan stays running when the engine and radiator are cool you have a very cheap problem: The thermostatic fan switch is stuck closed. A new switch will fix the problem--the hardest part of replacing it is finding it. Follow the wires from the fan to the switch--it is usually on the bottom tank of the radiator. Drain the radiator first and save the coolant to put back in after you replace the thermostat. NEVER OPEN A HOT RADIATOR.

If that wasn't it then check the following:

• Check to see that your coolant level is correct. Top up as necessary.
• Lay your hand on the radiator (with the engine off) and feel if it is as hot at the top as it is at the bottom. If not, your radiator may be clogged and need flushed or replaced. (Flushing is cheap. Replacing the radiator isn't)
• Do you get heat from the heater? Leave it turned on high and see if your fan stays running the next time. If it takes care of the problem that could mean you have a kinked radiator hose.

  Many newer vehicles have electric cooling fans for the radiator. The fan motor is controlled by a thermal sensor switch located at the hottest place determined by the manufacturer.. Usually the top of the intake manifold. If the engine and cooling system are at the alloted temperature required for the sensor switch to complete the circuit to the fan motor, the fan will continue to run until the coolant temperature drops and the switch closes the circuit causing the fan to stop. There should be a warning decal on the fan shroud or easily spotted location under the hood indicating that the fan or fans could start running at any time and to keep your hands away

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I own an manual transmission Australian model, Holden Astra TS 2000. I had the problem of the engine cooling fans continuing to operate after I turned off the ignition. In fact I woke up one morning and the fans were still going.

I researched the problem on "Google". It seems the problem was the cooling fan module. This module is located below the bumper, inside the front passenger wheel arch in front of the plastic wheel arch covering.

Cheers.