Best Answer

The Cooling Fans ( 1 Small & the a bit Larger ). The Big One Is For Cooling The Radiator For Normal Engine Usage. When The A/C Is On The Smaller Fan Will Run To Allow More Air To Be Pulled Over The Condensor And Radiator, To Better Cool The Water & Make The A/C More Efficent. There Is A Sensor In The Engine That Controls The Cooling Fan This May Have Gone Bad. I Would Begin My Testing Here First. Then Test The Fan To See If It Is OK. Hope This Helps

User Avatar

Wiki User

โˆ™ 2006-07-09 22:40:11
This answer is:
User Avatar
Study guides
See all Study Guides
Create a Study Guide

Add your answer:

Earn +20 pts
Q: What would cause the cooling fan to only work when the air conditioning is on?
Write your answer...
Related questions

What would cause massive amounts of antifreeze to leak in a 97 Grand Am GT when the air conditioning is running but only then?

you may have a cracked hose ***Your cooling system generally runs significantly hotter when the Air Conditioning is running. This is due to the extra heat produced by the A/C condenser located just in front of the radiator. You most likely have a defective radiator or cap, or a very small leak in your cooling system. The increased heat from the A/C causes increased pressure in the cooling system, and the leak becomes more evident.

What would cause water to leak from plugs above the gearbox?

The only water that should be leaking from an automobile would be from the condensation drain for the Air Conditioning or from condensation out the exhaust pipe.

What does nuclear power station cause to harm the environment?

Only thermal pollution to the source of cooling water. Even this problem is minimized if the plant has a closed circuit cooling system where only the cooling tower blowdown is discharged

Do you need the air conditioning condensor to drive your 93 ford tempo?

No, the condenser is a mini radiator for the air conditioning system only. The engine cooling system is separate from this component. You just won't have any cool air!

If your car is low on coolant does it cause it to overheat when using the air conditioner What else can cause it to overheat while the air conditioning is on?

Yes, low coolant will cause it to overheat without the AC; that is not the only reason that will cause overheating however.

What would cause air conditioning to only work occasionally?

1. Low on freon. 2. Bad cooling fan or fan clutch. 3. Bad compressor or clutch. 4. Bad receiver drier and expansion valve / bad accumulator and expansion tube. 5. Electrical issues. 6. Controller head. 7. Relay/module. 8. Bad grounds. 9 ECM problems.

What would cause a car to make ticking sounds after you turn it off and it was only driven for a few miles?

Contraction/expansion of the various metallic parts of you car due to heating and cooling, particularly the exhaust.

What would cause the air conditioning to work only in the high setting in your 1999 buick century?

Change your heat control sensor it mount on your heater motor on most models, it reduces the amount of voltage to the fan motor.

1994 caddy sedan deville keeps overheating when air conditioning is on Does anyone know what may cause this Please help its summer and my kids and I are dying?

There are two cooling fans in the front of your car. Check to see if they are both coming on when it is overheating. If only one is coming on it either has a bad fan motor,bad sensor that tells it when to come on or maybe only a bad connection at the sensor. You may need a mechanic to check it out unless you know about how electrical systems work relating to cooling fans

What would cause gas to be in the antifreeze reservoir?

The only possibility is a cross-connected line between the fuel lines and the cooling system, possibly in the exhaust vapor recovery system. A leak anywhere would be unlikely to enter the sealed water circulation.

Which is more efficient in heating and air conditioning, gas or water?

You can only get gas heating and air conditioning. The gas heating and air conditioning is less because it uses less gas then how much water you would be using. The electricity for the heater and AC can be fairly cheep.

Are the 1993 3.8 liter Chrysler known for over heating?

Only when there is a failure in the cooling system.Only when there is a failure in the cooling system.

The radiator cooling fan is not working on a 1998 Chevrolet Malibu Why does it only turn on when AC is turned on?

You need to check the cooling fan relay and the cooling fan only turns on when needed.other then when you turn the ac on then its always on.The reason the fan runs with the air conditioning is "on" is to keep the high side pressure down. Otherwise it would increase to the point of something blowing out such as a hose or the pop off valve in the compressor. If the check engine light is "on" the it will have a code referring to the problem

What does the icons mean on the dash?

Fuel level, heat or air conditioning up, both high and low, high only, floor only. Center vents are for air conditioning output only, no heat. Heat is designed to blow out side and floor vents only. NOT center. Center is only for air conditioning or summer vents.

Air is only hot on one side so where do i start to find cause?

Start by bleeding the cooling system of air. Google is your friend.

Why would an engine overheat at intersections only on 1993 Mercury Topaz?

Evidently the cooling fan is not working.

Which organelle would cause fatigue?

The organelle that would cause fatigue is called the mitochondria. However, it will only cause fatigue if there's a defect in it.

Can a leaking swimming pool cause a sinkhole?

It would cause excessive mud and the swimming pool would sink slightly. It would only cause a sinkhole if there was a hole underground under the pool.

Why are the cylinders of a air cooled engine surronded by cooling fans?

The cooling fans are the only cooling source for a air cooled engine.

98 ford f150 air conditioning only works on high?

My guess would be the blower motor speed resistor is burned out.

How does one add freon to an air conditioning unit?

Adding freon to an air conditioning unit should only be done by a certified technician. It is in fact illegal for anyone to add freon to air conditioning that isn't properly certified, so one would add freon by calling in a certified technician to do it for them.

No air conditioning in Xterra?

Only when you don't turn it on.

What would happen if you put antifreeze in your transmission?

antifreeze is intended only for an engine, not for a transmission. there is coolant FOR a transmission, i would say that there would not be sufficient cooling for the transmission. it would probably overheat.

What cause the cooling fans to come on on the 2001 Ford Escape?

Whenever the AC is turned on, both cooling fans also come on. Otherwise, during normal operation only one fan comes on when activated to maintain correct engine temp.

Would no antifreeze only water prevent cold air from coming air conditioning?

yes idiot the antifreeze is to keep the water from freezing