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

Coolant leaks

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Old 12-23-16, 05:00 PM
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volson
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Default Coolant leaks

Hey guys,

where have your cars leaked coolant from? I still have some drips on the lower engine cover and wanted to see what the usual suspects are. I have replaced radiator, cap, large hoses(not trans ones). I also redid the fipg seal on the housing near the top hose.
Old 12-23-16, 06:36 PM
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amusing
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With new radiator and hoses now investigate overflow at reservoir it will drain down a short tube onto that lower plastic panel also weep at water pump
best regards in getting a solution
Old 12-23-16, 08:20 PM
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911LE
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Could also be the water pump. Lexus coolant leaves a white residue when it dries so just look for that. Run your finger under all the hose connection points to see if a hose clamp isn't tight enough.
Old 01-02-17, 09:46 AM
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volson
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Originally Posted by 911LE
Could also be the water pump. Lexus coolant leaves a white residue when it dries so just look for that. Run your finger under all the hose connection points to see if a hose clamp isn't tight enough.
put the car up a little and took the engine cover off and it seems that it is accumulating and dripping from the middle of the steering rack. I am going to leave it level and keep and watch the drips. I am going to check the service records since timing belt was done 20-30 ago. I wonder if they skipped water pump.


edit: water pump was supposedly done 4.5 yrs and 40k miles ago.

Last edited by volson; 01-02-17 at 10:19 AM.
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