another coolant leak
Thread Starter
Advanced
Joined: Apr 2004
Posts: 59
Likes: 0
From: San Mateo Ca
another coolant leak
hey all,
just replaced a leaking surge tank and now have a leak right under the water pump. if i just replace the gasket, should the water pump give me a bit more life, if it is not bad, or should i just replace it as well? how can you tell if it's the pump or the gasket?
thanks...
just replaced a leaking surge tank and now have a leak right under the water pump. if i just replace the gasket, should the water pump give me a bit more life, if it is not bad, or should i just replace it as well? how can you tell if it's the pump or the gasket?
thanks...
Tech Contributor
Joined: Jan 2007
Posts: 19,524
Likes: 1,195
From: Dyer, IN
I'm not sure I've ever seen a water pump gasket leak. Usually, it has been my experience that the pump starts leaking from "weep" hole. It's a sign that the bearing inside is starting to walk out. Clean it up, blow it off with compressed air, and see where the leak is coming from.
Drifting
Joined: Feb 2005
Posts: 1,592
Likes: 3
From: St Louis MO
I'm not sure I've ever seen a water pump gasket leak. Usually, it has been my experience that the pump starts leaking from "weep" hole. It's a sign that the bearing inside is starting to walk out. Clean it up, blow it off with compressed air, and see where the leak is coming from.
Check the hose connections to make sure they haven't loosened. However, I see a waterpump in your immediate future. It's not a pretty picture.Cheers
Last edited by PierEagle; Oct 23, 2007 at 06:49 PM.
Tech Contributor
Joined: Jan 2007
Posts: 19,524
Likes: 1,195
From: Dyer, IN
For sure, sorry I forgot to mention that . If no pressure tester is available, Make sure you are full of coolant, allow the engine to come up to operating temperature. This will allow the system to pressurize. Then shut the engine off, and see where she leaks from.
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
Just an FYI. If you do have to replace the water pump, you can get one for an 04-up model. It allows you to use a normal type of thermostat (~$15), instead of the combination type where the thermostat and the water neck are one piece (~$50-$60).
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
The thermostat and housing are sold as a unit, but I don't think they are one piece. The ones I have seen still use a rubber gasket around the edge of the thermostat, and it is just pressed into the housing.
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
97-03 LS1 WATER PUMP
97-03 LS1 THERMOSTAT (LEFT) 04-LS2 THERMOSTAT (RIGHT)
04-LS2 WATER PUMP
04-LS2 THERMOSTAT AND HOUSING notice that the thermostat housing does not have the arm with the hole in it that holds some wiring on F-bodys
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Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
The LS2 waterpump looks completely different thn the LS1/LS6.
The only "exterior differences between the 1997-20004 are the t-stat housing.
The 2005-2007 WP has a much smaller drive housing, and refined internals that lengthen its life, and stop "weeping". The flow is exactly the same.
The only "exterior differences between the 1997-20004 are the t-stat housing.
The 2005-2007 WP has a much smaller drive housing, and refined internals that lengthen its life, and stop "weeping". The flow is exactly the same.
Last edited by Jeff @ TPE; Mar 7, 2008 at 02:52 PM.
