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No , it's best to add coolant when the engine is cold

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15y ago

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Do you keep your car running when adding antifreeze?

( NO ) with the engine cool


Should the engine be cool or running when adding antifreeze?

Your engine should be cold ( to be on the safe side) when adding antifreeze/coolant. i let the car sit overnight and then add it.


How do you flush and refill antifreeze on 2002 Yukon?

=To properly flush the antifreeze on a 2002 Yukon you will need a antifreeze vacume system you will need to start the car and have it running turn on all the heating modules to high and have the car reved at about 1.5 r.p.m, or a little higher to activate the vaccume this will start sucking the old antifreeze out. When the radiator is empty{you will know when it is empty because there will be no more antifreeze coming out}you can then fill it up with half and half antifreeze[half water half antifreeze].=


Does adding antifreeze to a car radiator increase the boiling point of the water in the radiator?

Yes


Why does car need topping up with water weekly?

why does car need topping up with water and antifreeze each week? why does car need topping up with water and antifreeze each week?


How your car will react running without antifreeze?

It will overheat, unless you can successfully air cool it.


How do you use the word antifreeze in a sentence?

I need to fill my car's radiator with antifreeze before winter comes.


Do you need antifreeze in the radiator to run the air conditioner in a car?

No


How can I start my car with low antifreeze?

You need to have your antifreeze up to par and if it is a leak you are worried about until you get somewhere to have it fixed there are quick fix solutions such as Barr's Leak that you can use it will seal the leak temporarily to get you to where you are going. Do not ever open your radiator cap if your car has been running - only open it when it is cold.


Why does the inside of my car smell like antifreeze but there are no leaks and is not running hot?

i believe your heater core has died


Adding a nonvolatile solute like antifreeze to the radiator of a car blank the concetration blank the freezing point?

increases, and lowers


What mixture of antifreeze does your car need?

Ford vehicles come from the factory with a 50 / 50 mix of antifreeze and distilled water