Why does the Cooler fan come on even when car has just been started?

Cars & Vehicles

This is normal for most vehicles when the ac is turned on.

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Why does the fan come on when the car is first started on a 1990 Pontiac Sunbird the temp sensor has been changed?

the fan relay sensor is out of it.

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Why are the cooler fans not coming on when van is hot?

There are several reasons for this. Some possibles are below:The thermostat is broken.The electrical wiring/supply is faulty.The fan itself is faulty.

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Why does your cooling fan come on when car is just sitting?

While your car is running the engine is heating up. While your driving you have air being forced over the radiator cooling it off. When you are sitting still you don't have that air so your engine is heating up even more so the cooling fan comes on to help cool you engine off. Via cooling the rad...

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Why does the fan stay on after the car has only been on a few seconds?

because the electricity is to strong and ithas to get red of it some how

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Why does my fan come on when I start my car?

Electric fans can come on after you shut off the engine.It varies, but since most fans are electrical, they will come on any time the coolant temp sensor indicates the need for more airflow to the radiator, or anytime the air conditioner is driving the need for more flow across the condenser.

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Why smokes just when push on gas after car has been running?

Blue or white smoke? Blue usually means burning oil. White smoke is steam - usually water is getting into the cylinders somehow.

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Why does the cooling fan comes on when the car is cold on 1997 dodge neon?

Turn off the defroster and see of the fans are on still. Also listen closely, do you hear the Air Conditioner on whenever the defroster is on? Cute huh? It ensures that your A/C gets turned on once in a while, to keep its seals lubricated.

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Why does the radiator fan come on and does it only come on when the car is running hot?

An automatic radiator fan will go on and off in cycles to cool an engine down when it begins to heat up. It works with sensors that monitor the engine heat and trigger other sensors to turn on the fan. It will even run with the car engine off after it's been driven a long time and is hot enough t...

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When I replaced my battery the fan started running even before I started the car.?

It is definitely caused by a problemtic cooling fan relay. When the bad relay shorts internally, it causes the fan to stay on at all times which drains the battery.You may have a bad relay. The year, make, model and engine info needed.

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Why does the fan keep coming on in my car?

Something wrong with the fan motor.If the motor's faulty then a new motor will have to be fitted.Check the engine coolant level.If your engine coolant level is too low, it means that the cooling fan will probably have to work harder to keep the engine at a normal temperature.

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Why won't the fan come on when engine gets hot?

if it a electric fan it may just be bad now if it runs of the water pump it may be a bad fan clutch. or it could be the thermostat. or fan relay.It could also be the sensor in the computer has gone bad which means you need a new computer.

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Why does your cooling fan come on as soon as you start your car?

Its just part of the cars computer, it just keeps it cool. Most cars cooling fans come on when the car is startedIf the AC is on it will.

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Why does my fan come on the second you start your 07 mini?

It would do that if the AC is turned on.

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Why does the fan not start on your car when it is idling?

electric fans are run by a sensor that turns it on when the engine has reached a certain temp. if the engine isn't hot enough or isn't workin hard enough the fan wont kick on

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Where is the fan relay on a 1992 Toyota Corolla Is this why when I start the car the fan comes on?

radiator fan relay number 1 is in Junction block #2 left side of engine compartment. Should be labled under the cover.

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Why does my fan come on when I stop my car?

Your temperature needle will indicate overheating when this needle runs “high” or “hot” or when the digital dash gives a warning.Often, overheating can be fixed by adding coolant (if the coolant is low) or by changing the oil.A car lacking oil is not good.This can cause an engine to crack or blow.

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Why do your electric cooling fans turn on when you just start the truck 06 silverado 5.3?

If the AC is on, that is normal.

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Why wouldn't a cooling fan come on even at 250 degrees?

Hey Mike==It depends on what kind of car you have but most have a sending unit that turns the auxiliary fan on. the sender may be defective. Some have the ecm turn the fan on. GoodluckJoe

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Does a car radiator fan come on as soon as you start the car?

no its not supposed to, there is a sensor that reads the coolant temperature and sends a signal to a relay or the engine computer which turns on the fan when it reaches a certain temperature.If the vehicle is equipped with AC, it is normal for the electric fans to come on when the AC is turned on.

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Temperature gage indicates hot all the time even when just turning the ignition key on without starting the car?

Either the sending unit is stuck, or you have a short in the wire.

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When should the cooling fan come on?

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.If the fan does not come on, something in the control circuit is defective.

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Why will the radiator fan on your 1999 jgc not come on when you start your car but works when you run hot cable direct?

A radiator fan is designed to operate only when the coolant is very hot, and the motor is in danger of overheating. You do not have a problem unless the motor overheats after sitting still idling for prolonged periods of time.

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Why when your fan is on full hardly any air is coming through into the car?

Assuming the lower speeds work okay, it could be the high speed relay is bad or the switch itself. If the vehicle is equipped with cabin air filters, they could be plugged up.

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Why does my Mini Cooper fan keep coming on?

Mini Cooper fans are meant to boost the circulation of air around the radiator to ensure the engine cooling system is well cooled.The mini copper fans should speed up the process of cooling by driving fresh air into the radiator.Why does your Mini Cooper Fan stay on when I turn off the engine?

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Why does my engine fan keep coming on?

Something wrong with the fan motor.If the motor's faulty then a new motor will have to be fitted.Check the engine coolant level.If your engine coolant level is too low, it means that the cooling fan will probably have to work harder to keep the engine at a normal temperature.

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Why does a cars temperature gauge go up when the motor has been turned off?

When a car is turn off the water stops circulating, but heat is still being conducted from the warm engine into the water. Aslo warm water rises and the temperatue sender unit is usually placed near the op of the eingine. This causes the temp to rise slightly after turning the engine off

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Why would just the headlights not come on when you turn on the lights?

A broken wire, a dead battery.

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Why does a key that has been copy wont start your car?

sometimes, in newer cars the original keys have chips in them, so if you have this, go to the dealer and order an new one.

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Why would both cooling fans on a 2001 Saturn L200 engage when the car is started?

Designed to come on when A/C or defrost is on. Also when engine temperature exceeds 235 degrees

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Why does your car whine when you step on the gas even when in park?

Depending on the vehicle and the amount of after market parts this could be caused by;A Supercharger, worn Timing Belt, worn serpentine belt, interference with the Radio or Intake.

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What does it mean when the temperature gauge rises while idling then the fan comes on?

Engine temperature rising when the engine is idling is normal. The car is sitting still and no air is entering the engine compartment. This will cause the engine temperature to rise. The cooling fans then come on and the engine returns to a normal temperature. Unless the cooling fans do not bring...

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Why can't you just bypass the power steering fluid cooler on a 1995 Chevy 2500 pickup?

Because if the fluid can't cool, it'll rupture lines, and then you'll lose all your power steering fluid.

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How long does the bank have to come after you after your car has been repossessed?

Does the bank have your current address and/or phone number? They will be calling on you.

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Why does your commodore overheat when you just changed your cooling fan?

Type your answer here... IF WE CHANGED ONLY COOLING FAN THEN IT WILL BE OVERHEAT BECAUSE WE DON'T CHANGE OR FLUSHING OF RADIATOR. WE CAN REMOVE THERMOSTAT VALVE ALSO MAY BE HOSE PIPE WILL BE BEND

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Why doesn't the check engine light does not come on when I start my truck?

Evidently the bulb is blown out. It needs to be replaced.

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Why do brakes lights on 2003 Suburban come on by themselves after car has been shut off for hours?

You must have a faulty brake light switch...it connects to the brake pedal...if you look up to the top of your brake pedal, you will see a little "box" with a button that is released when the pedal is pushed down.They are cheap and easy to replace.

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Does the fan of car start when you start a car?

Most are thermo controlled newer cars & come on only when temp warm enough. Many also run after shut off for that same reason. If it's older & belt driven then it always turns but may/maynot have a thermo clutch.If the ac is on the fans will run constantly in some vehicles.

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Why doesn't the fan on a 1996 Bonneville super charger wont turn on after the car has been runing for a while?

Several possible problems. Temp switch that controls fan has failed, fan itself could have failed, thermostat is stuck open so engine is not getting hot enough to turn on fan. also check the relay on the firewall. I think it is the second or third relay

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What fan starts when you start the car?

The one for the radiator on the right side

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Why does the air condition compressor just not come on sometimes and other times it does?

When the system is low on refrigerant the pressure switch will not allow the compressor to turn on. You may be right on the edge so it will sometimes and other times not. You need to recharge the AC.

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Why dost the radeader fans not come on a1996 touris?

well if its not overheating then they should not be onif it is overheating and they dont come on you need to check the control temp switch for them should be on top of the head somewhere

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Why would my temp gauge shows the car not hearing up why does the car has heat how come fans run after car is off?

In most engines the gauge and cooling fans have different senders, so if you have good hot air blowing inside the car from the heating system and the cooling fans on the radiator are operating, and still no gauge reading, you may have the wire disconnected from the temp. sender. The cooling fans ...

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Why does the temp gauge run about 80 percent before the fan comes on?

Internal combustion engines are more efficient at higher temperatures. However if the temperature the engine runs at becomes too high the production of harmful Nitrous-oxides increases. (this ignores the danger of heat damaging the components of the engine.)Experience has shown that the best comp...

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Why does my cars fan only turn on when the ac is on?

Your car fan turns on when you have your air condition unit on because, your engine heats up more when the air is on so the fan needs to come on to cool the engine down.

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Why doesn't the fan come on my v-rod?

a few possible reasons.1: the fan doesn't work. take two small jumper wires and connect the directly to the battery and the leads on the fan. if it works, then...2: your temp sensor has failed. remove the sensor and, while keeping it connected to the leads and with the key in the "on" position, t...

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Why does a fog come out of your car vents when you turn on the car and start driving?

Sounds to me like the heater core is leaking coolant.

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Why won't a car start if the starter and battery has been replaced?

Maybe the car needs gas.

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Why does your radio not turn off even when the car is off and the door has opened?

because you have the radio wired to a constant hot wire .

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Why is there a burning smell when the heat has been on for a while?

Sounds like your heater has dust bunnies and needs a good cleaning, when dust or fluff heats up it starts to singe or burn causing the burning smell.

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My is Mercedes c220 diesel glow plug light staying on most times I start the car even when up at running temp. Some mornings at the first start it takes a while to start just turning over then why?

It can be your glow plugs need replacment.you may have a wiring problem or you just need to diagnose your merc and see if any small errors came up. If they do just delete them.

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Why does my car brake lights stay on even when Im not pressing the brakes?

you've got a faulty switch which is located above the brake pedal.. or a short circuit

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Why does my car keep driving even when I put my foot flat on the brake?

the brakes on your car are broken, any fool with at least an ounce of common sense would have realised this, get them fixed before you kill your self or any innocent bystanders!

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Why does the rear floorboard of your 1997 CV flood each time it rains even when it hasn't been driven?

You have a leak somewhere.

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How does the radiator fan know to come on?

Most often there is a temperature sensor that tells the fan to run or not: above 165F (in a lot of cases) the fan goes on, below that it is off to allow the engine to warm up to running temperature. It varies from car to car and even day to day based on readings that the cars computer takes in ru...

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Why would the fan in 1991 Cadillac DeVille not cut off even when the car is turned off?

Usally it's Because the Module 4 the AC burns out & goes 2 ground-& will kill the battery if not dsconnected.Some modules are mounted inside the car on the evaporater case with a couple of screws.

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Why does your fuel injection act like it is flooded when you start the car after it has been setting for an half hour or longer?

It's usually the Coolant Temperature Sensor.You know you gotta give the engine some more gas when it's cold if you want it to start. The mechanism to do this on a carbureted engine ranges from the bulb on the side of a lawnmower carb (push five times to start) to a nifty little pump that's contro...

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What happens when there has been a hit and run on your car when you don't even know how it was hit or who hit it?

Well, there are two responses to this question - If your car was damaged in a hit-and-run accident and you have no idea who caused the damage and your car was uninsured, unfortunately, you are stuck paying for the repairs to your car. However, if your car was insured, simply pick up the phone and...

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In cold weather why does your 1997 corolla dx take a while for the transmission to shift up even after car has been warmed up?

Remove the two screws that hold the MAF on the intake near the air filter, go to an auto parts store or electronic supply place and get a can of spray electronic cleaner, spray the inside of the air flow sensor, you need to get it into the small opening where the platinum sensor wires are, they g...

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Why does the clutch judder when the car has been used for a while or gets hot?

Shuddering (like shivering, shaking), I believe, is caused by the surface area changes, in two ways. First, the friction plate can become glazed if it is ridden too much, or perhaps it is sliding and you aren't recognizing this. Basically, when the friction surface is too hot, a glaze of sorts fo...

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Why are water drops coming from under the car even hours after its been driven with little or no ac on?

A/C shouldn't "sweat" if it's not used. check the drops more closely, they might be antifreeze.

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Why in your 2008 Titan does the heater fan stay on even if you switch it off?

You could have a short to ground somewhere in the system. Im not completely sure...would have to examine it for myself. Take it to a shop. Just from what you said though, its probably a short to ground

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Why does your cooling fan still ran when the engine is switched off on your car?

The cooling fan is controlled by a temperature activated switch, usually installed in the radiator. When the coolant temp rises to a preset setting the switch closes and turns on the fan.The temperature of the coolant in the engine actually goes up immediately after shutdown as the coolant is no ...

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Why does your car start and then just stop?

it's your ignition messing up probaly the spark plugs. Either take it to s sho or do it yourself. It's not hard

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Why does your Mazda B 2500 not start when it rains even when it is under a car port?

It doesn't matter if the vehicle is under a car port or not, the humidity is high and if the spark plug wires are bad it won't start. Replace the spark plug wires.

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How come when I try to start my car it just clicks?

A clicking noise when trying to start your car and no engine movement typically means that the battery is too low to crank the engine or there may be a bad connection at the battery.If the battery and the connections are fine, then the starter may have failed.

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Why does my cooling fan not kick on when the car heats up?

The cooling fan may not kick when the car heats up due to dirty filters. Another reason can be a bad air pocket around the thermostat.

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What does it mean when your car won't start but all the lights come on?

When an Engine Won't Crank, But the Lights and Radio Work The most likely culprits are a blown fuse or fusible link, bad starter, bad ignition switch, or a dead car battery.If it accepts a charge, and the vehicle starts after it has been charged, then the problem is solved.

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Why does the idle on my 2009 Toyota Camry reduce when the fan is on?

The current needed to operate the cooling fan(s) puts a load on the alternator which causes the idle rpm to drop a little. Have the battery and charging system tested to be sure there isn't a problem.

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Ive just brought 2000 model yz125 which had the top end rebuilt the engine has now done 5 hours approx riding time and has just started to run ruffly the plug has been replaced and oil changed and new?

The first thing you need to check are your fuel filters. A bad or clogged filter can haunt an engine and make you chase a dozen different non-existent problems.

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The car started dripping antifreeze started it an the fan smashed to pieces what happened just had the fan clutch replaced?

sounds like the bearing in the water pump, gave way.leaking coolant is generally a good indication that the pump is worn out. changing fan clutch has nothing at all to do with leaking coolant.the problem was in the pump

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What does it mean when my car wont start but all the lights come on?

When an Engine Won't Crank, But the Lights and Radio Work The most likely culprits are a blown fuse or fusible link, bad starter, bad ignition switch, or a dead car battery.If it accepts a charge, and the vehicle starts after it has been charged, then the problem is solved.

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Why has the fan in my car stopped working?

A blown fuse might just be the reason your car heater fan is not working.Check for blown fuses and replace them to restore normal functionality.Also a faulty alternator could make the blower motor stop working, leading to fan failure, when the blower motor stops is rendered dysfunctional.

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Why does your ac come on when you turn on the heater on your car?

The AC takes the moisture out of the cabin air and that helps clear the inside of the windshield from moisture faster.

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Can you fire a attorney even if an offer has been made on your car accident case?

YES you can.. but they will still charge you fees.

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Why does your battery light comes on a minute after starting the car?

The computer has detected a fault with the battery and charging system.On a modern car it will need to be scanned to see why the computer is angry.On an old (older than mid 90's) car you have to figure out whats wrong with the alternator.

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Why does the traction control light come on when accelerating?

Your vehicle is informing you of the TCS activation when you are exceeding the available friction limit of your tires. Essentially, you are accelerating too quickly for the conditions (or your tires) and wheel slip occurs - accelerate moderately or invest in better tires.

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If a new anti-theft module has been put in your car and everything has been reset why might your car not start?

if the car has been in a wreck or bumped something solid it (might) have an inertia switch that needs 2 b reset.

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Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on?

The motion of a bicycle is in rectilinear motion, the object covers a certain distance along a straight line or a track. Whereas the motion of a ceiling fan when switched on is in circular motion, which is not moving from one place to another.The circular motion of the wheel gives the bicycle a r...

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How do you start a car that has been sitting?

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Why does smoke come from the tailpipe when you start the car and it gets heavier when you press on the gas?

If the smoke is white and it goes away when the car warms up it is condensation and normal. If the white smoke does not go away and smells sweet, you have an internal coolant leak. Possibly a blown head gasket. If the smoke is black, it is too much fuel and too little air in your fuel mixture, po...

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Why does a car roll backwards even when it's not on a hill?

If you more specifically meant "why does it roll even after you put it into park?" its because the parking gears are sliding into spot. When you throw the car into park the gears attempt to push into their proper place, then when you let off the brake they slide into their spot, and theres room t...

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Truck has been starting funny for about a week.cranking several times then today just going down road it died?

Check your battery and alternatCould be as simple as a fuel filter. I don't know what model or year truck you have but it sounds like it's time for a tune up.or.

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How come when the heater fan is turned on the 1995 Neon stalls or almost stalls?

Guess:Best Guess is defrost or AC are on and the engine is having trouble running the compressor. This is common on these cars when they have another fault with the way they run.Second best guess, The engine has a run problem, and the extra load causes it to be worse.

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Why does car smell of rubber burning after the ignition has been turn off?

Spark plug or coil wire(s) making contact with hot engine; Corroded, broken or poorly connected battery cable; Incorrectly routed, adjusted(tensioned), missing or worn drive belt(s); Incorrect belt tension will allow belts to slip; Loose or damaged belt tensioner will allow belts to slip; Worn or...

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Why does my car engine continue to run after the ignition has been turned-off?

I believe this usually this happens if the fuel / air mixture is not rich enough (too much air / too little fuel) which causes the cylinder heads to get too hot which means that any unburnt fuel in the cylinders will continue to ignite even after the ignition has been cut.

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Why won't a 1998 ford E350 start even though it has power?

Gas?If it cranks, no start... Need to check for fuel pressure, spark. If ok, you can check other things like if the injectors are firing with a noide light if they are not check fuses. If they are ok, could be ECM, cam sensor (CMP).

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Why does your 2001 Nissan Pathfinder heater fan stay on high even after I try to shut it off?

Why does your 2001 Nissan Pathfinder heater fan stay on high even after I try to shut it off?"

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Why does the starter not turn nor does it even crank or start on your 2000dodge ram1500 truck?

First, check for resistance on the relay. If you get no resistance when you test it with a digital multimeter, the relay needs to be replaced. If that isn't the cause, you'll have to pull the starter off and have it bench tested (this is a free service at places such as Auto Zone, NAPA, etc.). If...

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Why would my antifreeze become low causing my lightto come on after it has been filled two days ago?

There must be a leak somewhere; check the radiator and the hoses for signs of antifreeze leaking out. If the car has been running for a while, look for any signs of steam rising up from the engine area, this may be your leak. Careful not to get burned touching any hot parts.

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How do you get the brake lights to turn off even after the car has been shut off?

turn the inside lights off

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Why does my car cut out when i step on the gas when trying to start.?

you need to disconnect the two wire spout connector shorting bar located between the battery and data link connector

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Why your fan goes on when you star your car?

If you have the AC turned on the fan will come on to help cool the engine from the load on the engine. If your car has dual fans only one should come on at that time and the other one would come on when the sensor obtains the required heat range.

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Why is the gauge stays on cold and does not move up even the engine has sufficiently warmed up?

The temp sending unit or gauge is bad, probably the sending unit.

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Why does the battery light come on and off when the car is running?

This could happen for different causes.1. Your battery is making contact with a surface (like the hood, seat frame or trunk battery holder.) in BMW 325 or Cadillac north-star cases.2. The positive cables from the alternation or starter are bad and making contact with the engine, manifolds or body...

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Why does the ebrake light come on when accelerating the car?

Check the brake fluid reservoir, it is probably low. Time for a brake inspection.

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Why is your fan heater control switch is permanently on full even though the switch is on off?

It could be the high speed heater motor relay is stuck on or the switch itself is broken.

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What lights should come on when starting a car?

In most cars the battery warning light should appear when the ignition is turned on and should go off as soon as the engine starts.If this does not happen, or the light comes on when you are driving, then there may be a fault with your charging system.

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Even if the battery is dead shouldn't light come on when i hook up battery cables?

NO! where does the power (voltage and current) come from if the battery is flat/dead?

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Why does my fan stay on when my car is off?

In today's modern vehicles it is considered normal for the engine cooling fan to keep running for a few minutes after you turn off the car.When the engine is turned off, the coolant doesn't circulate, and the heat stays trapped therefore prolonging the engine from cooling.

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Why won't my car won't start the light won't turn on even when you jump start it what could be wrong?

Be sure and check the Negative battery cable connections where it connects to the frame or engine block of your vehicle. I have had this problem before and the cable was loose at the engine block. Also the Positive cable could be shorted to ground and jumping will not help.

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