LT1-LT4 Modifications 1993-97 Gen II Small Block V8

EWP going out?

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Old Jul 17, 2014 | 09:41 PM
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Default EWP going out?

So my meziere HD EWP is leaking coolant from the weep hole on the bottom of the electric water pump,not the hole on the stock pump housing..So Im just wanting to make sure this means the EWP is on its way out.
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Old Jul 17, 2014 | 11:57 PM
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IIRC Meziere rebuilds them for $100

like any WP, Meziere at some point fail. I am at 15 years...assume it will happen at some point
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Old Jul 18, 2014 | 07:28 AM
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Originally Posted by ******
IIRC Meziere rebuilds them for $100

like any WP, Meziere at some point fail. I am at 15 years...assume it will happen at some point
This is good to hear since I bought my Meziere back in 1999 and only installed it 2 years ago.
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Old Jul 20, 2014 | 04:09 PM
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So I'm trying to remove my electric water pump to send it in to Meziere for repairs but I can't seem to get the ewp off..i took all 6 bolts out and keep pulling on the ewp but I can't get it to separate from the housing..anyone know why it might be doing this or do I have to remove the whole water pump housing to get the ewp off?
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Old Jul 21, 2014 | 11:57 AM
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it should just come off assuming you removed ALL the small bolts. Might want to tap around it with a rubber mallet. You can buy replacement "O" rings from GM if you damage the one on there now
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Old Jul 27, 2014 | 01:10 PM
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Well tapping around it with a rubber mallet did the trick,but I have a question..Does the seal that was on the front of the water pump housing that mated up with the ewp come with the ewp or do I need to order another? I wouldn't know since I bought my ewp used already mated to the housing.
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Old Jul 27, 2014 | 01:29 PM
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15 years with the EWP? wow thats longer than i ever expected to hear. how many miles are on it? I have had mine for 4 years.
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Old Jul 28, 2014 | 11:39 AM
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Originally Posted by FormulaTA96
..Does the seal that was on the front of the water pump housing that mated up with the ewp come with the ewp or do I need to order another?.
IIRC the Meziere did not come with the large "O" ring seal, you use the stock one when you do the swap.

If you need a new one, GM part #: 1012-8329...for a few $
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Old Jul 28, 2014 | 11:42 AM
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Originally Posted by RedDeadG8
15 years with the EWP? wow thats longer than i ever expected to hear. how many miles are on it? .
the EWP has about 90k miles on it now, has far outlasted any OEM pump

I have had a spare in the trunk for about 12 years now, so far have not needed it but assume I will someday and that swap would be a 10 min job.
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Old Jul 28, 2014 | 10:07 PM
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Anyone know where I can find gm part 1012-8329?? Google isn't showing anything,same goes for the gm part sites..
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Old Jul 28, 2014 | 11:12 PM
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Not sure why there's a dash in the part number, but taking that out and there's all kinds of places that show up that claim to have it.
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Old Jul 29, 2014 | 08:21 AM
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Lol yea I took the dash out last night and searched again and found it,thanks though!
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