Cadillac CTS-V 2004-2007 (Gen I) The Caddy with an Attitude...

Back to square one HELP!

Old 07-02-2012, 09:41 PM
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Default Back to square one HELP!

So swapped the radiator out the other day ran it for a while no leaks no coolant sensor. Let it sit over night and there is a little puddle under the car in the morning. So I figured there was some coolant left over somewhere no big deal. Drive to the store get out and smell coolant. Let the car sit again over night and in the morning same puddle it appears to be leaking on the passenger side around the crossmember area. Any suggestions where to begin. I know I am going to have to tear into it but any common problems in that area I should look for? Thanks for the help.
Old 07-02-2012, 10:28 PM
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water pump usually goes soon after the radiator, or vice versa.
Old 07-03-2012, 12:03 AM
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I hope not that would just be the icing on the cake.
Old 07-03-2012, 03:46 PM
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My LS2 had a water pump go out around around 50K+/-.
Old 07-03-2012, 03:59 PM
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Check the inside of your hood after you've driven it. Water pump failures often spray coolant upwards.
Old 07-03-2012, 06:25 PM
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i have a feeling you forgot to tighten something, but that's just me.
Old 07-04-2012, 03:13 AM
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had that same issue after a cam swap... i reused the factory clamp on the lower hose... it leaked out the same way... did you use hose clamps to get a good tight seal? the water pumps from gm are pretty stout in my opinionl... on a work van i was driving the the coolant cross over tube rusted out by the head and my boss replaced the water pump at that time... but the van has 284000 and it was on the original water pump
Old 07-04-2012, 09:36 AM
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Hose clamps are whats up.
Old 07-04-2012, 09:56 AM
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possibly one of the smaller return lines from the top of the radiator, or where the pass through on the tb is.
Old 07-06-2012, 11:16 PM
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Water pump.....Had my rad out 3 times before figuring out it was the water pump. Take a good flash light and look right at the pulley shaft. If you see a fine mist coming from that area change the pump.
Old 07-07-2012, 02:09 AM
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Get a telescoping mirror and check the waterpump.. Mine went out a week after swapping the radiator..
Old 07-07-2012, 09:37 AM
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My waterpump never leaked out the weep hole,it leaked from the cover plate on the back
Old 07-07-2012, 02:55 PM
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My water pump was leaking right where the pulley goes into the front......It ended up getting bad enough that it would sling a line of water against the hood liner. Best of luck but the water pump is common to bite the dust.
Old 07-07-2012, 09:08 PM
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I am gonna spend some time tomorrow and figure it out for sure. If it is the pump what am I looking at price wise?
Old 07-07-2012, 11:48 PM
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About $150-160ish
Old 07-08-2012, 01:45 AM
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Cool 150 or 160 sucks but at least it will be fixed. Since I hear that the stock hose clamps are crap what should I get in place of those?
Old 07-08-2012, 12:06 PM
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worm gear
Old 07-11-2012, 11:33 PM
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Paid 110 for mine....new. Think I found it through Amazon.


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