My 1990 Grand Am 2.5 Liter started leaking radiator fluid the other day from a tube on the firewall. It is not by the two hoses that I think is the heator core. It also seemed to be leaking around the water pump. I can't see the weep hole so I am not sure that the pump is bad. I now can put water or radiator fluid in and it starts running out of the tube in the firewall. I know its not the A/C because I have not been running it. Any suggestion would be helpful.

 

Probably the heater or bypass hoses or the lines that feed the rerservoir if it is the newer remote style.

A parts store that stocks Gates or Dayco hoses should have it in stock, if not, a dealer item through any GM dealer.

You could have rotted tubes to the heater core as well.