Coolant leaking from the side of the radiator?

MYRANDA85!

MEMBER
2003 DODGE DURANGO
4.7L
V8
2WD
AUTOMATIC
180,000 MILES

October of last year I replace the radiator and water pump. Now it looks like there is coolant leaking from the side of the radiator. I can't really tell where it's coming from. I've added about a half a gallon in the last week so it's not a really bad leak but it's a little. Should I get a new radiator or just pour the aluminum sealant in?

Thursday, July 28th, 2022 AT 10:12 AM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,068 POSTS

Hi,

We need to determine if it is the radiator, a faulty hose, or even a simple clamp. Also, aluminum sealants can cause restrictions in other areas. I never use it.

Do me a favor. Take a look through this link and let me know if it helps you confirm the location of the leak:

https://www.2carpros.com/articles/car-is-leaking-coolant

If you are unable to locate the leak, the system will need pressure tested. You will need a pressure tester, but most parts stores will lend one to you.

https://www.2carpros.com/articles/radiator-pressure-test

I'm recommending this because the radiator isn't an inexpensive repair. If it is the radiator and you installed it only a year ago, see if there is any warranty on it as well.

Let me know what I can do to help.

Take care,

Joe

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Thursday, July 28th, 2022 AT 2:01 PM