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do i need a new water pump?

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Old May 23, 2015 | 11:28 AM
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Default do i need a new water pump?

coolant is dripping from the balancer onto the spring. i cant see where its comming from. is that the pump or could it be something else?

is the pump somehow rebuildable (seals)? if not, what is a good aftermarket pump (rockauto)? as i will be installing a centri shortly, should i get a ls3 or a ls6 or another pump?

thanks
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Old May 24, 2015 | 05:10 AM
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thanks. that thread scares me. so no way to rebuild the pump?
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Old Jun 14, 2015 | 01:10 PM
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so its the pump for sure. but maybe just the gasket.

i can get an airtex 5081 locally for $150 (a gm would be over $400). is that pump o.k.? any opinions?

Last edited by romandian; Jun 14, 2015 at 01:15 PM.
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Old Jun 14, 2015 | 02:12 PM
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looks ok, we can buy it on amazon over here.
Amazon.com: Airtex AW5081 New Engine Water Pump: Automotive Amazon.com: Airtex AW5081 New Engine Water Pump: Automotive

Be sure to buy the GM gaskets. These water pumps usually come with paper gaskets. This one does not come with a thermostat and thermostat housing.

As 8VETTE7 posted be sure to look for other leaks, the connection to the throttlebody is right above your leak spot, and could be that as well. What usually happens with these water pumps is the shaft seal goes bad. The pump still does its job, moving coolant, but the leak prevents full pressurization of the cooling system leading to boiling at lower temperatures. When the coolant boils, the heat transfer capability goes way down
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Old Jun 15, 2015 | 10:20 PM
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Default waterpump

Try ebay. I bought a new bosch waterpump for my 03 when I swapped in new LS-6. I think it was @$75? shop around. Good luck!!!! kh400
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Old Jun 16, 2015 | 01:44 PM
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Get a pump off Amazon. Swap your thermostat on it. Call it a day. Easy.
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Old Jun 16, 2015 | 02:05 PM
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if you're questioning the pump just do it now and save yourself the hassle because after you put a blower on the car and the pump develops a leak you will have to pull the headunit back off just to replace it, just a pain in the butt if you ask me
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