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water leak

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Mar 22, 2009, 4:43 PM

Post #1 of 2 (1216 views)
water leak Sign In

I have a 2005 chev express cube van with a 5.7 litre v-8. We have a water leak somewhere by the radiator. The leak only occurs when the engine is cold. We can run the truck all day with no leaks. Overnight we loose 3/4 gal of water. I took the van to a local garage and they could not find a leak. help!

Loren Champlain Sr
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Mar 22, 2009, 4:46 PM

Post #2 of 2 (1215 views)
Re: water leak Sign In

If you are leaking that much, it has to be going somewhere! Duh. You probably knew that. Sorry. Unsure
I've seen water pumps do this. Only leak when cold or when pressure is gone. Have them check the 'weep' hole at the bottom of the pump for signs of leakage. If you have to, you might arrange to leave the vehicle overnight?
SW Washington

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