So I have a 1991 Chevy like the name says. I just recently came upon this problem when driving it this Sunday. Truck Check Gages came on I looked seemed like the motor wanted to over heat so. Being smart I put water in the radiator until I could get it checked out. SO this morning same thing is happening expect that this time I noticed water coming from the bottom radiator I think water pump? What do yo guys think?

 

Yeah check the water pump. It has a little wheep hole on the bottom of it and if its bad then it will leak from the wheep hole.

 

double check under it again and check if it leaks from the front and back of the motor I had the same problem on my 99 tahoe and it was the very common intake manifold gaskets problem if thats the problem use the fel-pro gaskets to fix it up good luck.

 

Thanks for the tips. I won't be able to get under the hood again until Wednesday so I will keep you guys updated.