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The engine of what? The car? And usually, everything must be turned off before its safe to remove or install anything.

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Q: Does the engine have to be on or off when putting in antifreeze?
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How do you winterize a Yamaha LS 2000 boat engine?

You flush it first off with fresh water using the flush points wash off all salt with fresh water in jet and boat, then flush engines with antifreeze you will need to make an adapter for this off a bottle, then run engines until antifreeze comes out do not Rev as there is no pressure! Then stall engine by putting fogging oil into carbs, turn fuel off disconnect batteries, spray engines with wd40 job done


Why did i replace the top radiator hose filled with antifreeze and the engine still smokes?

Because there is antifreeze int he system and it takes a while to burn through. Also replace the bottom hose too. <> If it smokes from under the hood, It has antifreeze on the engine exterior, You can wash it off. Or just drive it and it will burn off. If it smokes from the exhaust, There is engine damage.


What could be causing antifreeze to come out after car shut off out of the reservoir?

The engine is overheating.


Does a bubbling sound from th engine indicate a need for more antifreeze?

A bubble sounds from the engine usually indicates that the engine is seriously overheating. It is best to turn off the engine and call a mechanic. Adding antifreeze may help, but it is likely leaking somewhere.


What if car has no coolant antifreeze is empty what damage can it do?

The engine will overheat and can cause severe engine damage. The engine will be completely ruined if it is not immediately shut off.


Can Antifreeze be added to a warm engine?

Yes it can, as long as the engine is running. Be careful when taking the radiator cap off thou, cause its under pressure.


If antifreeze puddle on ground from under coolant bucket do i need water pump?

It is possible that the antifreeze is coming from a bad water pump. Clean the engine off. Watch it to see where the antifreeze is leaking from, as it could be a hose instead of the pump.


What is the synonym for antifreeze?

engine coolant


Side affects of breathing antifreeze odor from a combustible engine?

side affects of breathing antifreeze odor from a cng combustible engine


What are the effects of antifreeze mixing into the engine oil?

A bad head gasket is the most common cause of antifreeze mixing in the oil. The antifreeze will dilute the oil and it will eventually cause your engine to seize up.


Can check engine light go on w low antifreeze?

Doubtful !... The antifreeze is added to the radiator - to keep the water above freezing point. There is no way of the engine knowing how much antifreeze is circulating.


Where is antifreeze tank in 99 contour?

The engine coolant reservoir is in the engine compartment , on the passenger side , about the middle ( 50 / 50 mix of antifreeze and preferably distilled water , do not exceed 60 % antifreeze )