What are you asking; what the function of the warning system(s) are or what could be causing it/them to turn on? In general: Most cooling systems only have warning systems for excessive temperatures, i.e temeprature gauge and/or warning lights. Some may have a warning system for low coolant levels in the expansion (header) tank also. In rare cases, there are systems for cooling system pressure and glycol dilution levels. If any one of these systems are active, it indicates either a fault in the cooling system or prehaps in the sender unit and/or warning system itself, i.e. high temp warnings upon a cold start. Signs of cooling systems problems are a regular loss of coolant, high engine operating temps, ineffective cooling fans, pregnant hoses, a hot smelling motor when running, peeling paint on the rad itself etc If you are a little more specific prehaps I can help more. Thanks, CHarlie
You are low on coolant or the low coolant sensor/wiring/connection is bad.
You may need to add fluid to your cooling system. These lights are programed to alert you if the levels are low.
Low coolant? Cooling system airbound? Low coolant? Cooling system airbound?
Low coolant? Cooling fan not working? Bad thermostat? Cooling system airbound? Water pump not circulating coolant? Radiator core plugged or restricted? Bad radiator cap?
to check for leaks or in the case of the cooling system preasure cap to raise the boiling point of the coolant
In the cooling system.
Poor coolant circulation in the cooling system.
Air can get into the cooling system when the coolant is replaced as either part of a maintenance schedule or when the system must be drained for a repair. When the coolant is replaced the coolant system must be "burped" to get any air out of the coolant lines. There are various ways to do this dependant upon the type of vehicle. A repair manual for your vehicle will describe the proper technique.
You probably need to replace the heater core. Be sure to also check your coolant levels, as well as the condition of the coolant - if it's burned out, have the cooling system flushed and the coolant replaced.
The coolant will not protect the cooling system against corrosion.
Coolant system warning light. It should go off when you add coolant.
Sounds like you may have a bad head gasket.It will leak exhaust into the cooling system and create alot of pressure
The cooling system is a closed system. If there is smoke (probably steam) there must be a leak in the cooling system somewhere.
You cooling system requires coolant in order to keep working properly, if you are wondering why your room is still hot even though you have the AC on; it is because your air conditioner is out of coolant. Just call your local heating and cooling specialist.
Air bound means that there is an "air bubble" in the cooling system that is preventing coolant from circulating in the cooling/heating system. (air can be compressed fluid cannot)
Nothing will happen if you drain the cooling system and replace the coolant.
I would have the cooling system flushed and coolant replaced. DEF is very caustic.
It raises the boiling point of the coolant
low coolant? Plugged or restricted radiator? Water pump not circulating coolant? Cooling fan not working? Thermostat not opening? Cooling system air bound?
Bad temperature sensor unit? Cooling fan not working? Water pump not circulating coolant? Radiator plugged or restricted? System airbound? Thermostat not opening?
Is the question how to bleed a Buick 3800 cooling system? I would say open that little petcock by the themostat housing and release all the air as you fill the system with coolant. When coolant comes out instead of air all the air is out.
Unless there are big stickers saying otherwise, any vehicle will use ethelyne glycol based anti-freeze/boil-over protection coolant, such as Prestone, Prime, et cetera. Just beware of the 'really cheap' coolant, which is a 50/50 mix of coolant and water. Such is what you are supposed to add to the cooling system, but knowing how to drain the block is beyond most people, and, without draining the block, getting proper concentration in the cooling system using a 50/50 mix can be difficult. I recommend buying undiluted coolant, pouring out about a quart, and adding a quart of water to the jug, mixing well, and then adding to the cooling system. (Of course, this is after the cooling system has been properly back flushed to clean out sludge and corrosion.) Do not pour undiluted coolant into the cooling system, as it can corrode portions thereof before it mixes with the water in the cooling system. Do not run undiluted coolant in the cooling system, for the same reason. A 50/50 mix will protect a cooling system to about -45 degrees Fahrenheit, and if if gets colder than that where you live, you should be aware of the extra precautions you should take, such as block heaters, oil heaters, et cetera. It is necessary to have water in the cooling system for it to work properly, the anti-freeze is there to keep the water from freezing, not to act as a coolant on its own.
The 2002 Dodge Caravan 2.4 liter engine cooling system has a coolant capacity of 5.5 gallons. The cooling system fluid should be 50 percent anti-freeze.