LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Small radiator leak

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Mar 30, 2021 | 01:49 PM

#1

drrmilr7

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From: FL

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Small radiator leak

Tiny leak top right with minimal antifreeze crusting. Can it be sealed without radiator replacement?

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Mar 30, 2021 | 01:54 PM

#2

Striker223

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From: Ohio

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Quote:

Originally Posted by drrmilr7

Tiny leak top right with minimal antifreeze crusting. Can it be sealed without radiator replacement?

No, not reliably. The top and bottom tanks will eventually separate from the fin/pipe stack like you are seeing and need to be replaced

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Mar 30, 2021 | 07:09 PM

#3

Romanova

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From: TX

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A radiator is like $75 for a Denso. Just do it right the first time, before it gets worse. The plastic endtanks don't last forever...

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