How can I fix my GMC Sierra truck radiator?

THX 4boltsChevy, but I know it's not the pump. The "rad" still holds fluid that circulates very well when the accelorator peddle is compressed. When the engine is hot, the leak or slight crack is on the driver side of the "rad". Only when there is enough pressure from hot liquids (to expand the hole area) is the leak kind of visible... I know it's near the bottom of the "rad" but I can't tell exactly where it is. Is there a quick fix that I can add to my "rad", along with more liquids, to plug the hole???

James
September 2006

Its prolly not, but the pump. You been smelling AF for months,
all of a sudden overheat. Now you check it . If it was the rad
you' wouldn't have all this time. They go quick.

4boltsChevy
August 2006