I noticed a pretty strong coolant smell coming from the front of the truck. It seems worse when the e fans are running. The radiator is a used one from a 03 SS. Water pump had new gaskets put in at 97k and I'm at 130k. I don't see any leaks and it's not being mixed into my oil. It's only in the engine bay. Any ideas? Should I just put a new water pump on there since it's the original from 04?
I pressure tested the cooling system for 20 min and the gauge didn't move. The radiator does have some cracks starting and there seems to be some seepage at the bottom corner. I also found that the drivers side water pump gasket is leaking a little.
I looked up some water pumps and there are 2 ac Delcos. 252-845 and 251-743 is any difference between the 2 besides the price?
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/C499D662-6F24-435A-A373-802BD9629859_zpssushr2lp.jpg)
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/B1DB8D54-56B5-4144-8955-0201982549CE_zps3irz0sf5.jpg)
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/616A7793-4B53-462A-ABEA-3A4D052422A4_zps5jggark3.jpg)
Not sure what happened here. It must of been this way when I bought it.
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/5EE26797-A76B-4462-93C9-BFD597389651_zpssepav7d3.jpg)
Circled the spot I think is seeping
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/ead16d07-c732-4701-bacd-600b09423d4f_zpsr9alufqq.jpg)
I pressure tested the cooling system for 20 min and the gauge didn't move. The radiator does have some cracks starting and there seems to be some seepage at the bottom corner. I also found that the drivers side water pump gasket is leaking a little.
I looked up some water pumps and there are 2 ac Delcos. 252-845 and 251-743 is any difference between the 2 besides the price?
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/C499D662-6F24-435A-A373-802BD9629859_zpssushr2lp.jpg)
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/B1DB8D54-56B5-4144-8955-0201982549CE_zps3irz0sf5.jpg)
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/616A7793-4B53-462A-ABEA-3A4D052422A4_zps5jggark3.jpg)
Not sure what happened here. It must of been this way when I bought it.
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/5EE26797-A76B-4462-93C9-BFD597389651_zpssepav7d3.jpg)
Circled the spot I think is seeping
![](http://i160.photobucket.com/albums/t187/SolarGold79WS6/ead16d07-c732-4701-bacd-600b09423d4f_zpsr9alufqq.jpg)
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