Where do u add sealant for the radiator on a 2002 Chrysler 300m 3.5
I'd recommend as most here would, replacing the radiator vs adding any stop leak from a bottle, especially if you plan on keeping the car.
You can put it in the over flow tank were you add the anti freeze or just remove upper radiator hose and pour into hose reinstall hose then add anti freeze to fill mark in over flow tank.
The only reason I recommend trying it is because I have used the Bars Leak and it has worked for me now for a year and a half. I know at lot of people do not recommend using it because they say it clogs up the cooling system and it will if you use more then that's recommended. Do not add more if it does not work the first time hoping it will work that is when you will clog up your cooling system.
Where do I pour stop leak in my Chrysler 300M 2002
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