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yes, should never add coolant to cold engine

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11y ago

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Does the car need to be running when adding antifreeze?

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


How much coolant do you need to put in your car?

The bigger your car, the more coolant you need to put in. The bigger your engine and car, the more coolant you need


My car is leaking coolant from the top of my engine under the manifold and dripping down drivers side what could be wrong with my '99 Chevy Malibu leaking coolant?

My car is is running hot and smoking... i discovered the coolant was low i added new coolant and its pouring out the bottom of my car My car is is running hot and smoking... i discovered the coolant was low i added new coolant and its pouring out the bottom of my car


Will coolant spill out of the over flow tank if the car is to hot?

put coolant into my over flow car was running hot and the coolant erupted like a volcano on the side of the over flow


What happens when you put coolant into a Malibu without running the car?

When the car is cold the thermostat is closed. When the thermostat is closed the coolant does not circulate or get in to the engine block.


Why are the fans running on a Oldsmobile alero 2000 when the car is on?

to cool the coolant in the engine


How do you know if water pump has broke on my car?

You should see the coolant circulating in the radiator when the car is running


What happens if someone sabotages your vehicle by putting oil in the coolant?

The engine of your car will heat up.


Do you add engine coolant with car on or off?

Off and cooled down. Putting cold coolant into a hot block can crack it. And it can damage the radiator, as well as spitting the coolant back at you.


Why do you need to keep putting coolant in your 2001 Daewoo Lanos every 3-4 days?

Hi, I think you have a leak somewhere as the systems doesn't need to have coolant on a 3 -4- day basis, check all the hoses after the car has been running and at operating temperature and you may see some leakage onto the ground, Check the dipstick to see if it has white oily deposits on it? regards Pacnat1


If someone puts a coolant in your car and says it should work for green or pink coolant is he correct or will it cause harm to the cooling system?

you need to read the product you are putting in car.Some brands mix with each other some don't......


Water Leaking underneath my car passenger side under the car?

If you are running the A/C then this is normal and is just condensation from the A/C unit. If you are not running the A/C then it may be coolant. If your coolant is low then check for a leak at the connections for the heater hoses going inside the car.