Question about Toyota Corolla

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Fan stays on when car is on, engine not getting to proper running temp

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  • 208 Answers

Most likley you need to replace the thermostat that runs the fan.

Posted on Nov 20, 2013

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Posted on Jan 02, 2017

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  • 314 Answers

SOURCE: overheating engine

O man! You have a major prob!!! The head is warped, will need to be machined, and the list goes on!! If you want to keep this car do consider a rebuilt engine. That is the most frugal way to solve your prob! Sorry Frankster016

Posted on Oct 23, 2008

dmftrucker
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SOURCE: 04 Bonneville, GXP. Blower Motor not Function Properly

sounds like the sensor is becoming questionable or a hi resistance ground in this part of the blower sensor circuit

Posted on Oct 05, 2009

  • 11 Answers

SOURCE: cooling fans in op until engine is shut down

Check out clarks-garage.com he has a complete troubleshooting guide for your cooling system along with a schematic. In short, check the low speed resistor on the firewall. Should be around one ohm.

Posted on Oct 10, 2009

  • 5520 Answers

SOURCE: No Heat, fan works engine is at temp.

Check to see if both heater hoses are hot when the engine has heated up and the heater is running.

You have 2 possibilities. One is that water valve is not opening and the heater core is cold, the second possibility is that the heater core is hot and the ductwork under the dash is not switching the flaps to give heat.

If both heater hoses are hot it means the heater core is hot and the interior ductwork is not channeling heat. You would then need to replace a movement valve or motor to switch the flaps in the ductwork.

Sometimes with the high priced options, there are self-diagnostics in the control panel of the heater. You would need someone to initiate the sequence and let the self-diagnostics pinpoint the bad part. Otherwise you need to dive under the dash and troubleshoot.

Posted on Feb 12, 2012

  • 2 Answers

SOURCE: fan stays on when car engine turned off

Its normal for a fan to run after the engine is shut off if the temperature is high enough,but if your car is running hot,you have other issues

Posted on May 19, 2012

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ENGINE TEMP GOES TO HOT. I APPLIED POWER DIRECTLY TO FAN FAN OPERATES.BUT WHEN THE ENGINE GETS ABOVE OPERATING TEMP THE FAN DOES NOT RUN.


Hello,

Thanks for using FixYa.

Your problem is a simple, you have a busted thermoswitch. The thermoswitch is a sensor that engages the fan to get the engine to stay on normal operating temperatures. If the its too cold, the fan should get shut off if its to hot the fan should keep running. If the thermoswitch dies, the fan could either keep running or not run at all. Have the thermoswitch replaced. It's just a 15 minute job for a seasoned mechanic.

I hope this helps. Thanks and good day.
- HotRatchet

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My fan stays on all the time


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Cooling fans not turning on. Fuses good. Relays good.


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I don't think the 2 have been synchronized, i.e. the thermostat and the temp gauge as if they for different manufacturers products. As a result your fan is always running no matter what the engine temp is, so I guess the thermostat is either faulty or it has not been installed properly.....sodeep

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Cooling fans will only turn on if engine is off only


Electric cooling fans do not run all the time. They will only come on if the engine exceeds normal operating temp. Also will run when AC is on. Easiest way to make sure they are operating properly is to first verify they run when the AC is on. Next turn the AC off and run the engine at 2500 rpms sitting still and monitor the temp gauge (don't let it get into the red). The fans should come on after 10-20 minutes (depending on outside temp.). As the engine cools down they will turn off.

Jan 04, 2009 | 1995 Honda Accord

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Overheating engine


O man! You have a major prob!!! The head is warped, will need to be machined, and the list goes on!! If you want to keep this car do consider a rebuilt engine. That is the most frugal way to solve your prob! Sorry Frankster016

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