What will it cost to have a radiator replaced in my 1989 seville (has only 76,000 miles)?
If the radiator is in good shape and flows well, keep it. The hole you described can likely be soldered (welded) closed by a local radiator shop.
Sorry, you asked "how much?". Probably $100 or less to fix the hole but you may need to take it out of the vehicle yourself.
Search Cadillac DeVille Questions
Cadillac DeVille Experts
Related Models For Sale