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Coolant Leak Help**


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some body please help me i have started to notice coolant patches on the ground had the water pump replaced it seems to be coming from the the back top part of the pump coolant doesent leak when the car heats up but when it cools down it leaks what is causeing this and how much would it cost to fix plese help :)

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I had the same problem when I changed the water pump on my IS200 to a non original water pump (I did it the same time as the timing belt). Was losing about 1 liter of coolant in 24 hours. Tried refitting the water pump two time using new gasket and gasket sealant (and lots of coolant) each time with no help. I then got a new original Lexus water pump and not a leak since and got a refund on the non original water pump. So find out what make of water pump was fitted as that might be it.

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