Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
And it appears that current flowing thru the heater core will cause issues.
http://www.steelsoldiers.com/showthread.php?116289-CUCV-cab-heater-core-multiple-failures-resulting-in-leaking-of-heater-core-into-cab
Sometimes if you have bad ground wires, the current will flow thru the heater core and radiator and make them corrode. Not saying that is your issue but is something to check.