• Mercury Cougar
  • Heater Cores and Blower Fans
  • Car Heaters

What would make a Mercury Cougar blow cold air and the temperature gauge to overheat?

User Avatar

Wiki User

βˆ™ 2011-09-13 18:01:38

Best Answer

Low coolant in system and heater core needs to be flushed or changed

AnswerThere could also be is (air pocket) air in the system. If motor is cool and resivoir is full. Fill radiator from upper radiator hose run till warm then re-check resivoir. AnswerClassic head gasket leak, (a bad one probably ) Answerone thing every one missed is the thermostat if the colant is full and the car is running good other than the cold air and over heating i would change the thermostat before i would the head gaskets, one way to check the thermstat is to start the car and let it run till the gauge gets to mid range, shut the engine off and feel your radiator if its cold your thermostat is bad, another method is to pull the thermostat it should be closed when its cold, put it in a pan of water and heat it to between 185 to 195 degrees using a thermometer to check the temp, once that temp is reached the thermostat should open if it does its good and if it does not than its bad. if its a head gasket it will show one of these signs, one of the biggest signs on a couger is white smoke out the tail pipe, wich is burning antifreeze, another sign is water in the oil wich will make the oil on the dipstick look brown and milky or white and milky, another is oil in the water wich if you look in the radiator there will be brown or black spots of oil. if any of these apear you have a blown head gasket,the other way you can check is to buy a compression tester and test each cylinder for the correct compression. Michael
2011-09-13 18:01:38
This answer is:
User Avatar

Your Answer


Related Questions

How do you read the Oil pressure gauge on a 1989 mercury cougar?

with your eyes

00 mercury cougar maint light is on looks like a can with an x through it?

On a 2000 Mercury Cougar : The warning light that looks like a can with an X through it , located between the engine coolant temperature gauge and the tachometer ( at the bottom of the gauge cluster ) is your ( LOW engine cooling system warning light )

Your temperature gauge is reading hot is this the thermostat?

Is vehicle actually overheating? Could be a bad temperature sending unit or gauge Check temperature with a thermometer If thermostat does not open vehicle will overheat

Will no antifreeze in the car cause the temperature gauge to go up?

Yes, because your vehicle will overheat.

What is wrong when your temperature gauge goes up in a car?

Your car is starting to overheat or your thermostat is going out. Get it checked.

Why is the temperature gauge needle not moving on mercury tracer?

mostly likely something wrong with the sensor or gauge.

What is causing your car is overheat when the temperature gauge is normal?

well your car needs a new body kit because that contributes to the temperature of the car

How can I tell if my thermostat is bad?

Does vehicle overheat rapidly? Do you have heat? Does temperature gauge show that vehicle is running cold

What would cause the temperature gauge to go up and down?

If you temperature gauge is going up and down then you may have a problem with your sensor. You should take your car to a professional to ensure that you don't overheat your car.

How do you change the light behind the odomitor and clock in a 1999 Mercury Cougar?

You have to pull the gauge assy out and the lights are mounted from the rear. Run1

How do you recharge the AC on a 1995 Mercury Cougar?

Connect a gauge to the low side ac port. Connect Freon to the gauge. With the ac running, open the valve and allow Freon to fill the system.

What would make a Mercury Cougar blow cold air and the temperature gauge to show cold?

Check your thermostat. Looks like it is stuck open and needs replacing. That could be why your engine is running cold. Atleast its not stuck in the closed position.

How do you know if Oldsmobile intrigue is overheating?

The gauge on the far right side of the gauge cluster is your engine temperature gauge. The normal operating temperature is at the half-way mark. If the needle raises above the 3/4 mark then the car is overheating. A light will come on also if it begins to overheat.

Is there a reset button for temperature gauge on 2000 mercury sable?

No - the gauge reports 'real-time' the engine temperature. If it is wrong, there is a problem with the sending unit on the engine. This is a pretty easy fix...

What sysrems will you see on your 97 ford ranger when the thermostat has gone bad?

If your engine thermostat sticks open it will run cooler on your temperature gauge and you won't see the temperature gauge go up to the point where your engine thermostat opens and then the temperature gauge will show a drop in temperature , your check engine light will probably come on , your gas mileage will be less , the heat from your heater probably won't get as hot If the engine thermostat were to stick in the closed position your engine will overheat ( but there are several other causes for an engine to overheat )

What is the light on dash of 2000 cougar that looks like a battery with fan in center?

There is the ( low coolant ) warning light that is at the bottom of your gauge cluster between the engine temperature gauge and your tachometer

What is wrong when the odometer speedometer gas gauge indicators stop working on the dashboard IN A 1996 MERCURY COUGAR?

It is quite possible in a 1996 Mercury Cougar, that when the dashboard instruments all quit at once, there is a fuse that has been blown. Most of the gauges in the dash run off the same fuse in most vehicles.

Does 1999 mercury mystique have an alternator warning light?

There is a battery light above the engine temperature gauge

1995 mercury tracer temperature gauge is not working Is it a bad temperature sensor?

i dont really know but i think it is 700k? i d k you tell me

What could cause an intermittent overheat reading on the dash temperature gauge if coolant temperature sensor and the thermostat are new and the water pump and radiator appear to be fine?

Head gasket. Do block test for gases in coolant

What would cause the battery gauge in a 94 mercury cougar to go down when idleing but when you push the gas it shoots back up?

Its a sign that either your battery or alternator is starting to fail.

What is the part number for the temperature gauge sending unit for a 1998 Mercury Mystique 2.0 liter?

I believe that is Motorcraft DY961

Could anyone tell you if thermostat is broke would the temperature gage still work on the car?

Yes the temperature gauge will still work. If it stuck open the car will run cool. If it is stuck closed the car will overheat.

What would make the Temperature gauge is stuck on cold on a 2000 mercury cougar?

i have a 2000 mercury couger well lets see i changed my controle temp sensor and mine stuk to cold but when i put my old one back in it went to normal they told me it was my mass air flow sensor try the both of them they ain't but 20.00 bucks a piece its one are the orther.

Temperature gauge grounding out on 1999 surburban?

replace temperature gauge