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Time for a water pump ?

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Old May 21, 2015 | 06:20 PM
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Default Time for a water pump ?

I noticed my car smells like coolant (vapors?) when idling at stop lights. Got to work this morning and it looks coolant like it's bubbling up behind the water pump. I attached a small video I took of it. You can see the bubbles come up right between the back cover and pump body. Does that mean the pump is on its way out... or ...?


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Old May 21, 2015 | 06:52 PM
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how many miles you got on it? GM pumps tend to last about 100k miles before they just blow out.
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Old May 21, 2015 | 07:25 PM
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A lot more than that.. But I have no way of knowing if it's original or not unfortunately...
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Old May 21, 2015 | 11:09 PM
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I can't get your video to play.....

A bad water pump will leak from the bottom center of the water pump through the weep hole.....meaning the bearing seal is gone. The water pump will still keep pumping water normally no matter what. So no problem driving it to a mechanic as long as you know the coolant is topped off.....you will run normal temps.

If you have coolant bubbling or leaking out of the top or around the outer body or the water pump....its probably just a bad gasket.

.
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Old May 21, 2015 | 11:12 PM
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I got the video to play....but I can't see any coolant bubbling......

.
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Old May 21, 2015 | 11:54 PM
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Originally Posted by LS6427
I got the video to play....but I can't see any coolant bubbling......

.
Yeah it's barely noticeable. Well.. maybe i'll replace the water pump anyway. Thanks
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Old May 22, 2015 | 02:31 AM
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Oh yeah, that's definitely bad. Looks like its coming out of the rear cover seal. You'll likely get basic paper gaskets with your pump. You could spring another 10 bucks for the metal/rubber/whatever Felpro gaskets. I forget if a new thermostat housing gasket comes with the pump, but I put a new thermostat on with the housing so it came with a new seal. You'll need one of those seals too.

You could do the hoses or not if they are newer. It's an easy job at least. Just watch the gaskets when installing. Those things tend to fall off or get cockeyed when installing the pump. So watch em like a hawk.
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Old May 22, 2015 | 08:14 AM
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i have a 2002 with ~70k miles on it, last year or before i started getting a very small leak with the smell so i changed the water pump. didn't find out till i was changing it (already bought the new pump) that the leak was the oem o-ring gasket between the pump and the block. so all i needed to do was replace those 2 gaskets. that may be what's happening... i didn't look at your video.
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Old May 31, 2015 | 02:37 PM
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from what I've been told the LS1 water pump is good for well over 150K miles.
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Old May 31, 2015 | 03:51 PM
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I'm in the process of puttong my V back together due to replacing water pump. Amazon had the best pricing for me.
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Old Jun 1, 2015 | 07:30 AM
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ya thats gone. The mileage thing is bs, I had one with 10k take a crap on me in the same way. Stuff like that is much more dependent on age, letting seals sit instead of constantly running them will ruin them a lot faster than miles
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Old Jun 2, 2015 | 12:20 PM
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Looks like a bad o-ring to me. Could try that first.
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