An expert who has achieved level 2 by getting 100 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: Fan will not turn off after the car is off
Hello, this is normal unless, it never turns off. they are a type of thermal control that when ie is above set temp. it will lower it(aprox 10-15 min. run time) my cars from the last decade all have done this. it disturbed me until i learned why.. hope this info helps
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
depending on the engine temperature the fan is supposed to remain on after you turn the engine off, until the engine reaches a preset cooler temperature. when it reaches cooler temperature usually within 5 minutes or so it should cut off... if you cut it off and it is running 30 minutes later.. then there is a problem with the fan relay or temperature sending unit.
Does the fan really run until the battery goes dead?? OR are you afraid that it might run until the battery is dead?? In many cars, the fan will continue to run for a short time after you shut it off.... until the engine coolant is cooled to a certain point. It can also run for a while when you've been using your air conditioner. Now, if it is actually running continuously and won't turn off, there is a sending unit somewhere that isn't functioning correctly, either in your cooling system... or your air conditioning system. You're going to need to do some research and find out which sending unit might be the culprit..... or take it to the shop. They'll know what to do and can probably quickly fix it.
Many cars have this feature. The fan will run for a few minutes at a time until the coolant in the radiator drops below a certain temperature. Most vehicles with this feature will have a warning label on the radiator shroud indicating that the fan may start without warning when the engine or radiator is still hot. The only time you would need to be concerned would be if the fan continues to run without turning itself off, and causing the battery to be drained.
You can unplug the fan so it doesnt run the battery dead. Typically what happens with these vehicles is that a failing radiator fan burns out the solid state fan relay, this can also cause the relay to short and supply continuous voltage to the fan assembly. The relay is located below the passenger headlamp but you will need to remove the front bumper to access it.
boost vehicle but before you do that remove the fuse for the cooling fan till you get it to turn over once its running plug said fuse back in and get it to a shop to have them diagnose why the fan is on to long
Cooling Fan Temp Sensor is the First thing You Check (with what you have described) Cooling Fan Should ALways come On When The A/C is turned On as A/C Adds A Load to Engine, If Temp Sensor is Faulty it Will Not Give GROUND Signal to ECM >For COOLING FAN >RELAY to Give ground and turn ON The Fan.
There ARE 2 temp Sensors that Serve Different Purposes 1 is for Dash READING GAGE & Or TEMP LIGHT the Other is For ECM or Fan Relay (SAME Thing) you Said>""can disconnect the sensor and fan continues to run" < This Leads me to think you Changed the Wrong One. Not Questioning your Skills Just Here to Help.
TEMP SENSOR FOR 3.1L V6 is Located upper RH rear of engine compartment, near exhaust system. Temp SENSOR for 2.3L Engine is Located in LH rear of engine compartment. I Hope this Helps Lead you to a NON-OVERHEATING Pontiac.
Good Luck and Have A Great Evening. rejakwilson
Hi Scott, The electric fan should run, for a few minutes or more depending on how hot the cooling system is. ( normal ) I would suspect that the problem is the battery, Or the terminals are corroded or loose. Have it checked under load, Any auto parts store will do it for free. Heat and vibration are the most common cause of battery failure. Unless you are constantly draining it all the way down, with a car stereo. or some other voltage drain. The average lifetime of a battery is actually about two or three years, Less in hot climates. Good luck and Keep those Jumper Cables handy till you get it diagnosed. Regards paul