Over heating low coolant light always coming on

Park it where you can check to see where the coolant is leaking from. More than likely a bad radiator or water pump.

2.7 liter? Check the coolant level. If its low check the water outlet housing on the top of the engine in the middle on the passenger side. If is full of red crusty looking stuff than it needs to be replaced. The first thing that will stop working if the coolant gets low e ought is the heat.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

engine damage
low oil level
incorrect oil
low oil pressure
bad oil pressure switch
bad engine ground
bad oil pressure switch connection or wiring
incorrect or clogged oil filter
incorrect idle speed

I think it's right under the coolant fill cap. I have a 2003 mini, and I can see the radiator hose going in there, but it's hard to look in. I copied the instructions from autozone.com and will paste them below. The instructions don't mention it, but I think you will need to remove the air filter housing to access the thermostat housing bolts. Also, there is a bleeder port on the upper radiator hose that I would crack open after the job is done to let any air out. The instructions don't mention that either, but it's always good to bleed the system. Let me know if you have more questions.

If the radiator is filled to the top with coolant and the engine is run without the radiator cap in place, the coolant will expand and spill over as the engine warms up.

• Drain some coolant into a clean container until the coolant level is below the thermostat housing.
• Remove the upper radiator hose connection from the thermostat housing.
• Loosen the housing bolts and remove the housing.
• Remove the gasket and scrape it carefully from the surface of the housing and the mounting surface on the engine. If the gasket remains on either of the surfaces, there will probably bea coolant leak after reassembly. Some engines use a rubber O-ring to seal a thermostat housing.
• Compare the size of the thermostat to the old one. They are of different sizes, types, and temperature ratings.
• The temperature rating is stamped on the sensing bulb on the bottom of the thermostat. The temperature bulb faces the block.
• When replacing a thermostat, be sure that the thermostat fits into the groove in the block or outlet housing. If the thermostat is installed upside down, the engine will overheat.
• Install the gasket.
• Reinstall the thermostat housing. Refill the system and run the engine or pressure test to check for leaks.
• When the engine has reached operating temperature make sure the thermostat opens.
• You should be able to see coolant circulating within the radiator.
• Another way of checking thermostat operation is to feel the top of the radiator hose or use a thermometer or multimeter with a temperature probe to confirm that the coolant is warming up.
• If the engine is overheating, but the top hose is still cool to the touch, the thermostat is stuck closed and must be replaced.

NOTE
When a paper gasket is used and the recess is in the thermostat housing, it is a good practice to position the thermostat into the recess and glue the gasket to hold it in place. If it falls out of its groove during installation, the outlet housing can be cracked or a coolant leak will result. Before tightening the water outlet housing, try to rock it back and forth to be sure it is flush. Housings are often cracked during this step.

White smoke is caused by coolant or water coming out the tail pipe. white smoke continues you have an internal coolant leak, i.e., cracked head/blown head gasket.

YEP YOU HAVE LEAK AT THERMOSTAT HOUSING.YOU NEED REMOVE THERMOSTAT HOUSING OUTLET AND CLEAN THE MATING SURFACE THOROUGHLYTHEN APPLY RTV SEALANT IN THE GROOVE OF THE WATER OUT LET HOUSING.INSTALL THERMOSTAT WITH SPRING TOWARD THE ENGINE TORQUE THERMOSTAT OUTLET HOUSING BOLTS 89 INCH LBS.IF STILL LEAKS OUTLET HOUSING COULD HAVE CRACK IN IT CAUSING LEAKING.

Hi,

In your Model :-

The automotive thermostat is a temperature controlled on and off valve. When the temperature rises to a predetermined temperature, the thermostat opens up to allow the engine coolant to flow through the cylinder block and the radiator. This flow is crucial to maintain optimum operating temperature for fuel efficiency, enhanced driveability, and engine protection. The coolant flow is reduced when the engine is cold, and the flow is increased when the engine is hot. Contrary to popular opinion, operating the vehicle without the thermostat doesn't make the engine run cooler. It will actually run hotter because there isn't a thermostat to slow the coolant flow. This means the coolant doesn't stay in the radiator long enough to dissipate its heat.

TO TEST THERMOSTAT

There are several ways to test the opening temperature of a thermostat.
One method does not require that the thermostat be removed from the engine.

• Remove the radiator pressure cap from a cool radiator and insert a thermometer into the coolant.
• Start the engine and let it warm up. Watch the thermometer and the surface of the coolant.
• When the coolant begins to flow, this indicates the thermostat has started to open.
• The reading on the thermometer indicates the opening temperature of the thermostat.
• If the engine is cold and coolant circulates, this indicates the thermostat is stuck open and must be replaced.

The other way to test a thermostat is to remove it.

• Suspend the thermostat completely submerged in a small container of water so it does not touch the bottom.
• Place a thermometer in the water so it does not touch the container and only measures water temperature.
• Heat the water.
• When the thermostat valve barely begins to open, read the thermometer. This is the opening temperature of this particular thermostat.
• If the valve stays open after the thermostat is removed from the water, the thermostat is defective and must be replaced.
• Several types of commercial testers are available. When using such a tester, be sure to follow the manufacturer's instructions.
• Markings on the thermostat normally indicate which end should face toward the radiator. Regardless of the markings, the sensored end must always be installed toward the engine.
• When replacing the thermostat, also replace the gasket that seals the thermostat in place and is positioned between the water outlet casting and the engine block.

Positioning a thermostat into an engine.

• Generally, these gaskets are made of a composition fiber material and are die-cut to match the thermostat opening and mounting bolt configuration of the water outlet.
• Thermostat gaskets generally come with or without an adhesive backing. The adhesive backing of gaskets holds the thermostat securely centered in the mounting flange, leaving both hands of the technician free to align and bolt the thermostat securely in place.

TO REPLACE THERMOSTAT

CAUTION
If the radiator is filled to the top with coolant and the engine is run without the radiator cap in place, the coolant will expand and spill over as the engine warms up.

• Drain some coolant into a clean container until the coolant level is below the thermostat housing.
• Remove the upper radiator hose connection from the thermostat housing.
• Loosen the housing bolts and remove the housing.
• Remove the gasket and scrape it carefully from the surface of the housing and the mounting surface on the engine. If the gasket remains on either of the surfaces, there will probably bea coolant leak after reassembly. Some engines use a rubber O-ring to seal a thermostat housing.
• Compare the size of the thermostat to the old one. They are of different sizes, types, and temperature ratings.
• The temperature rating is stamped on the sensing bulb on the bottom of the thermostat. The temperature bulb faces the block.
• When replacing a thermostat, be sure that the thermostat fits into the groove in the block or outlet housing. If the thermostat is installed upside down, the engine will overheat.
• Install the gasket.
• Reinstall the thermostat housing. Refill the system and run the engine or pressure test to check for leaks.
• When the engine has reached operating temperature make sure the thermostat opens.
• You should be able to see coolant circulating within the radiator.
• Another way of checking thermostat operation is to feel the top of the radiator hose or use a thermometer or multimeter with a temperature probe to confirm that the coolant is warming up.
• If the engine is overheating, but the top hose is still cool to the touch, the thermostat is stuck closed and must be replaced.

NOTE When a paper gasket is used and the recess is in the thermostat housing, it is a good practice to position the thermostat into the recess and glue the gasket to hold it in place. If it falls out of its groove during installation, the outlet housing can be cracked or a coolant leak will result. Before tightening the water outlet housing, try to rock it back and forth to be sure it is flush. Housings are often cracked during this step.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

bleed air out cooling system. put half antifreeze and half water .if you got too much water .it willl cause engine to over heat. antifreeze raise boiling point .220 degrees it wont boil away . water will evaporate 212 degrees.it will boil away .causing low coolant problems and over heating.

Hope you didn't run your car much when it overheated. this could mean trouble if you did. But as suggested, replace the thermostat.drain the coolant if it has any left, below the thermostat level. It is located at the end of one of the radiator hoses . the housing has a bleeder screw at the outlet of the housing. then remove the housing. the thermostat is located underneath. be careful to replace it the same direction. Clean the contact points on the engine and the housing.And place a little bit of silicone gasket sealer on the gasket and the housing . Make sure the thermostat is settled on the engine part. Carefully replace the housing. And reinstall everything back. refill with coolant half/half water and coolant.Start the car and let it heat up. Then bleed the system with the bleeder screw turning it counter clockwise until all that comes out is coolant. refill radiator again and repeat. Until radiator is full.

it seems like the radiator of your car needs attention. check for coolant level in it, when its cold. if les add some coolant and then see if the problem persists.
--than there are chances of chocking in the coolant pipes, may be they not reached to engine..  
--Check the chock,, that it is not turned on. 
--May be sum loosing nut in engine.