how much should it cost to replace the water pump on my 2005 lexus LS430 ?

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My Lexus LS430 has 194k it is over heating on inclines. I replaced the thermostat and it is still doing it. Could it be that the water pump needs to be replaced ? What seems to make the problem better or worse? going up an incline How long have you had this problem? for awhile

jwhite0950a85fff in Riverside CA

Aug 29, 2017

1 Reply

Popular Answer

DaveJMon Aug 29, 2017

Hello, I would not recommend guessing on replacement of a water pump for this concern. I would strongly recommend having a proper diagnostic test performed to see what is happening. Whereas it is possible that a water pump is failing to work, it would be more unusual than other more common causes, like a cooling fan that is not working, or even an air pocket that remains in your cooling system following replacement of the thermostat. Further, it could be a sign of an internal engine coolant leak. Therefore, it's best to check rather than throwing good money after bad.

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