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I can't find where this damn coolant leak is coming from! Help!

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Old 05-05-2010, 01:29 PM
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Default I can't find where this damn coolant leak is coming from! Help!

So I had a fairly decent coolant leak shortly after I bought my 02 WS6 w/ 25k. Couldn't locate the problem spot so I put on a new GM water pump w/ new gaskets. A local mechanic could not see any sign of it leaking after putting the new pump on and after driving it roughly 20-30 miles. Get the car home and garage it for the night. Just started it up and let it warm up for a few minutes and what do ya know....a 50 cent piece size puddle of coolant. I can't see where it coming from! Looks to be towards the front of the car/motor. Anyone ever ran into this issue or can lend some prior knowledge? Thanks!
Old 05-05-2010, 01:39 PM
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Check all your clamps and make sure they are seated tightly. Mine was leaking and I couldnt tell where it was comming from either. So i went and changed all of the clamps and the problem went away.
Old 05-05-2010, 01:48 PM
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I will check those out. I seems like it only wants to do it on cold start ups. I drove it a few miles, came home and parked it for a few minutes and then started it back up and let it run while I layed under the car. Didn't leak at all during the 5 minutes I let it run. Nothing on the garage floor after letting it sit for 15 minutes as well.
Old 05-05-2010, 01:56 PM
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Go borrow a pressure tester from a parts store.
Old 05-05-2010, 02:22 PM
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Originally Posted by joshiedoom
go borrow a pressure tester from a parts store.


^^^^^^^^x2
Old 05-05-2010, 08:33 PM
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For finding leaks you can use that UV leak detection kit stuff from the parts store too. I think they're about $40-$50.
Old 05-10-2010, 05:10 PM
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I kinda have a similar problem. For some reason my radiator is full and my coolant dip reads zero.
Old 05-10-2010, 05:19 PM
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Originally Posted by cmd1126
I kinda have a similar problem. For some reason my radiator is full and my coolant dip reads zero.
The radiator and coolant overflow tank are not one in the same. Add coolant...




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