Is there some sort of additive we can put in radiator to seal the freeze plug?

Tiny
BARRYPOLLACK1892
  • MEMBER
  • 2003 DODGE RAM
Our mechanic tells us he needs to remove entire transmission to get access to put in new plug. Is there some sort of additive we can put in radiator to seal the plug?
Thursday, August 13th, 2009 AT 5:36 PM

4 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Coolant leaks are typically not to bad to repair and can consist of can be the water pump, radiator or hose but to be sure which is leaking these guides can help us fix it.

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

and

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

and

https://www.2carpros.com/articles/coolant-leak-symptoms

Let us know what happens and please upload pictures or videos of the problem.
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Thursday, May 13th, 2021 AT 12:15 PM
Tiny
BARRYPOLLACK1892
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Thanks so much for your prompt reply.
Is it true the transmission has to be removed to access this plug?
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Thursday, May 13th, 2021 AT 12:15 PM
Tiny
MHPAUTOS
  • MECHANIC
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If the leaking plug is located at the rear of the block, and coolant is leaking out the bottom of the bell housing, this is the case, there are a number of these core plugs on the engine, they are part of the block casting process, this one is located behind the drive plate or flywheel, and there is no option but to remove the transmission if it is leaking, make sure that it is replaced with a brass plug as the original plug will be steel, that is why it has finally failed, the brass will last a life time and the extra cost of the brass plug is very minimal.

Mark
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Thursday, May 13th, 2021 AT 12:15 PM
Tiny
BARRYPOLLACK1892
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Thanks so much!
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Thursday, May 13th, 2021 AT 12:15 PM

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