Auto Parts and Repairs
Antifreeze and Engine Coolant
Why does coolant boil out of radiator?
What causes coolant to boil and overflow?
Engine coolant temperature is cooled by the radiator, moved by a water pump and controlled by a thermostat. If there are troubles with any of those components the coolant will boil Also if the head gasket goes bad gasses from combustion inside the engine will get into the coolant and cause it to boil.
Asked in Radiators
Will a bad radiator cap cause excessive pressure that will cause the coolant to boil off instead of circulating through the engine?
What part of the engine will coolant boil first?
The cylinder head The cylinder head area is the area where coolant will boil first if coolant is present. The area directly above the combustion chamber will get hot first, which is the bottom area of the cylinder head. The old saying that heat rises is still true. Heated coolant will usually exit the upper radiator hose to the radiator and as coolant is cooled in the radiator, it will circulate down into the block where it will be heated again to repeat the cycle. The coolant pump present in most engines just helps this natural cycle.
Asked in Ford Focus
What is cause for the water in the radiator to boil in your ford focus?
Asked in Chrysler
What causes boil over in a 1998 Chrysler Concorde?
Why is it not safe to open the radiator cap when engine is overheating?
When the cooling system is overheated, the coolant is at pressure. Removing the radiator cap will release the pressure, and allow the coolant to boil, probably splashing you with boiling-hot radiator fluid. Your arms and hands will certainly be burned, and there's a good chance that the boiling coolant will splash your face. You wouldn't like it if that happens.
Asked in European Cars, How To
HOW TO DRAIN and refill COOLANT from a system which doesn't have radiator cap Would the coolant reach the radiator is we refill the coolant through the coolant header tank?
Asked in Toyota Camry
What happens if you don't bleed the coolant system after installing a new radiator on 1996 Toyota Camry 2.2L?
Asked in Chrysler PT Cruiser
Why does your Chrysler PT Cruiser over heat when the AC is on?
Asked in Radiators
What do it mean when the radiator boil in to your over flow?
Asked in Honda Accord EX
Why is 91 Honda accord ex coolant radiator is cracked?
Why did your antifreeze start to boil over in your 1995 Ford Escort?
Asked in Cars & Vehicles
The coolant starts to boil shortly after starting the engine. State the fault indicated and how you would diagnose the fault?
Your car has overheated twice in the past couple days - so hot the coolant was boilingwhat could cause the coolant to boil?
Asked in Cars & Vehicles
Why would water boil in your radiator but the temp gauge is at normal?
What causes radiator boil over in a 1992 Subaru loyale?
There can be several reasons for a boil over condition. 1. low or insuffecient coolant. Anti-freeze protects from boil over too. If the level of coolant is low or does not have enough "antifreeze" in the mixture, the boiling point is lowered. 2. thermostat is not opening or not opening enough. A thermostat must be installed, however. If the thermostat is not installed the coolant circulates so fast that the radiator does not have time to remove the heat and boil over results. 3. insufficient coolant flow. Blockage from thermostat, debris in the radiator or a condition called electrolisis. This is the hard white scaley stuff that you may see inside the radiator that is the result of the coolant flowing over the different types of materials in your cooling system. Regular flushing and renewing coolant is the best prevention of this. A professional flushing or replacement of radiator may be required to fix. 4. Head gasket or cracked head. This would be a major engine mechanical failure and would require removal of cylinder heads for close inspection. Other gasket failures could also contribute to overheating by allowing air into the cooling system, thereby lowering the boiling point.
Asked in Chemistry
Does the water in the radiator reach a boil?
Water in a car radiator does not normally boil. In some old cars, the cooling systems would run at about 220 degrees Fahrenheit. The pressure would be high enough so that the water would boil at 250 degrees. Today, you do not put water in radiators but coolant. It is much more efficient than water for cooling engines.